GMAT Data Sufficiency (DS) Forum - Free Practice Questions

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Complete 1000 GMAT Data Sufficiency Series (DS-1000 Series) Questions

Bunuel

25 Oct 2022, 08:11

179

15

79,894

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of April 2026

1, 2

Bunuel

01 Jan 2026, 05:45

858

24

189,017

by: bumpbot

16 Sep 2025, 06:05

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DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

488,732

by: bb

29 Aug 2025, 13:27

ER

If x, y, and z are integers, is x/(yz) an integer?

705-805 (Hard) | Multiples and Factors, Number Properties

705-805 (Hard) | Multiples and Factors, Number Properties hide tags

Bunuel

21 Mar 2022, 06:05

6

4

3,178

by: bumpbot

03 Jan 2026, 06:18

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if x and y are positive integers, is xy evenly divisible by 4?

555-605 (Medium) | Multiples and Factors

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GKomoku

10 Apr 2020, 04:22

5

4

3,511

by: RJJ

03 Jan 2026, 04:00

ER

If p and q are integers, can (q − 1) always be expressed as an integer

705-805 (Hard) | Multiples and Factors

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Bunuel

30 Jul 2017, 22:37

2

8

2,087

by: bumpbot

03 Jan 2026, 03:51

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If p = (n)(5^x)(3^k), is p divisible by 10?

655-705 (Hard) | Exponents, Multiples and Factors

655-705 (Hard) | Exponents, Multiples and Factors hide tags

Bunuel

04 Feb 2015, 08:42

25

5

5,192

by: bumpbot

02 Jan 2026, 10:34

ER

If n and x are positive integers, what is the least common multiple of

605-655 (Medium) | Exponents +2 tags

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Bunuel

28 Apr 2016, 03:33

13

3

4,026

by: bumpbot

02 Jan 2026, 02:45

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If p, m, and n are positive integers, n is odd, and p = m^2

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

maniac

24 Feb 2014, 08:58

25

9

5,874

by: AliEjaz01

01 Jan 2026, 10:41

ER

If k is a positive integer how many unique prime factors does 14k have

805+ (Hard) | Multiples and Factors, Number Properties

805+ (Hard) | Multiples and Factors, Number Properties hide tags

Bunuel

09 Dec 2020, 01:15

31

12

7,555

by: bumpbot

31 Dec 2025, 09:16

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If x and y are non-zero integers, is x divisible by 11?

655-705 (Hard) | Multiples and Factors

655-705 (Hard) | Multiples and Factors hide tags

RoberJunior

09 Mar 2016, 05:07

9

4

4,683

by: bumpbot

31 Dec 2025, 03:13

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If x is a perfect square greater than 1, what is the value of x?

655-705 (Hard) | Multiples and Factors, Number Properties

655-705 (Hard) | Multiples and Factors, Number Properties hide tags

Bunuel

13 Dec 2016, 10:56

4

3,632

by: bumpbot

31 Dec 2025, 02:48

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If x and y are both positive integers, what is their greatest common

705-805 (Hard) | Multiples and Factors, Number Properties

705-805 (Hard) | Multiples and Factors, Number Properties hide tags

Bunuel

11 Oct 2016, 02:13

22

11

4,220

by: Bunuel

28 Dec 2025, 11:16

ER

If m is a positive odd integer between 2 and 30, then m is

705-805 (Hard) | Multiples and Factors

705-805 (Hard) | Multiples and Factors hide tags

kashishh

26 Apr 2012, 02:54

92

8

17,539

by: bumpbot

28 Dec 2025, 08:25

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If x is positive integer, is x^4 - 1 divisible by 5?

655-705 (Hard) | Multiples and Factors, Remainders

655-705 (Hard) | Multiples and Factors, Remainders hide tags

Bunuel

22 Nov 2019, 02:40

30

16

8,943

by: bumpbot

23 Dec 2025, 11:22

ER

How many different prime numbers are factors of the positive integer n

605-655 (Medium) | Multiples and Factors, Number Properties

605-655 (Medium) | Multiples and Factors, Number Properties hide tags

1, 2

xyzgmat

05 Jun 2019, 03:04

653

20

146,141

by: bumpbot

18 Dec 2025, 20:37

Can the students at Ridgecrest Elementary School be divided evenly int

705-805 (Hard) | Multiples and Factors

705-805 (Hard) | Multiples and Factors hide tags

bhanu29

15 Nov 2025, 03:26

6

3

599

by: bhanu29

15 Dec 2025, 18:17

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a, and b are integers, is a factor of b?

555-605 (Medium) | Multiples and Factors, Number Properties

555-605 (Medium) | Multiples and Factors, Number Properties hide tags

Creeper300

05 Nov 2010, 09:45

10

6

11,156

by: bumpbot

09 Dec 2025, 12:11

ER

If X is a positive integer, is X a perfect square?

655-705 (Hard) | Multiples and Factors, Number Properties

655-705 (Hard) | Multiples and Factors, Number Properties hide tags

StringArgs

02 Jul 2022, 23:26

14

4

4,603

by: bumpbot

09 Dec 2025, 07:44

ER

What is the remainder when positive integer x is divided by 6?

655-705 (Hard) | Multiples and Factors

655-705 (Hard) | Multiples and Factors hide tags

Bunuel

02 Sep 2022, 05:10

4

1,689

by: bumpbot

09 Dec 2025, 00:59

ER

If x and y are both prime, is xy = 323?

705-805 (Hard) | Multiples and Factors, Number Properties

705-805 (Hard) | Multiples and Factors, Number Properties hide tags

tusharGupta1

23 Apr 2014, 08:36

68

10

17,228

by: bumpbot

04 Dec 2025, 14:41

ER

Is x/11 an integer?

805+ (Hard) | Multiples and Factors, Number Properties

805+ (Hard) | Multiples and Factors, Number Properties hide tags

fskilnik

09 Oct 2018, 14:36

42

5

5,436

by: bumpbot

25 Nov 2025, 05:06

ER

If p is an integer, is p/18 an integer?

555-605 (Medium) | Multiples and Factors, Number Properties

555-605 (Medium) | Multiples and Factors, Number Properties hide tags

gmat1393

09 Jul 2018, 23:25

21

3

5,883

by: bumpbot

24 Nov 2025, 09:27

ER

If a and b are positive integers, what is the greatest commo

655-705 (Hard) | Multiples and Factors

655-705 (Hard) | Multiples and Factors hide tags

Bunuel

12 Jun 2014, 07:37

158

9

15,102

by: bumpbot

24 Nov 2025, 07:31

ER

If k is a positive integer, then 20k is divisible by how man

555-605 (Medium) | Multiples and Factors, Number Properties

555-605 (Medium) | Multiples and Factors, Number Properties hide tags

hellzangl

22 Aug 2013, 04:17

264

16

56,136

by: bumpbot

23 Nov 2025, 08:47

ER

Is x a multiple of 12?

655-705 (Hard) | Multiples and Factors

655-705 (Hard) | Multiples and Factors hide tags

dreambeliever

01 Oct 2017, 05:01

37

12

10,081

by: bumpbot

23 Nov 2025, 05:13

ER

If r and s are integers, is r divisible by 7?

Sub 505 (Easy) | Multiples and Factors, Number Properties

Sub 505 (Easy) | Multiples and Factors, Number Properties hide tags

monty6000

10 Jul 2014, 01:52

14

5

15,500

by: bumpbot

20 Nov 2025, 02:12

ER

What is the units digit of the three-digit integer N ?

655-705 (Hard) | Multiples and Factors, Number Properties

655-705 (Hard) | Multiples and Factors, Number Properties hide tags

Bunuel

07 Sep 2015, 22:45

59

16

9,816

by: Stella5200

11 Nov 2025, 21:23

ER

What is the value of a positive integer n?

555-605 (Medium) | Multiples and Factors

555-605 (Medium) | Multiples and Factors hide tags

Bunuel

17 Nov 2023, 07:02

4

2

1,626

by: bumpbot

05 Nov 2025, 07:54

ER

By abc we denote a three digit number with digits a, b, and c. Is abc

605-655 (Medium) | Multiples and Factors, Number Properties

605-655 (Medium) | Multiples and Factors, Number Properties hide tags

Bunuel

18 Mar 2015, 05:19

10

9

8,559

by: Bunuel

05 Nov 2025, 04:17

ER

Is the positive integer x even? (1) x is NOT divisible by n!, where n

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

Bunuel

11 Jul 2019, 02:25

16

8

3,731

by: bumpbot

04 Nov 2025, 07:26

ER

Each of seven consecutive integers, all greater than positive integer

805+ (Hard) | Multiples and Factors +2 tags

805+ (Hard) | Multiples and Factors, Number Properties, Statistics and Sets Problems hide tags

Bunuel

30 Apr 2015, 04:23

64

7

8,948

by: bumpbot

01 Nov 2025, 11:37

ER

Any decimal that has only a finite number of nonzero digits

555-605 (Medium) | Arithmetic +2 tags

555-605 (Medium) | Arithmetic, Fractions and Ratios, Multiples and Factors hide tags

rxs0005

30 Sep 2010, 04:28

166

12

23,710

by: harryzhang

31 Oct 2025, 23:45

ER

If N is a positive integer, what is the tens digit of N?

555-605 (Medium) | Multiples and Factors, Number Properties

555-605 (Medium) | Multiples and Factors, Number Properties hide tags

Bunuel

07 Mar 2016, 08:53

22

7

7,798

by: bumpbot

30 Oct 2025, 00:03

ER

If 500 is the multiple of 100 that is closest to x and 400 is the mult

655-705 (Hard) | Fractions and Ratios, Multiples and Factors

655-705 (Hard) | Fractions and Ratios, Multiples and Factors hide tags

gmatbull

19 Aug 2010, 02:57

212

15

39,874

by: bumpbot

28 Oct 2025, 23:09

ER

If x^3-x=n and x is a positive integer greater than 1, is n

655-705 (Hard) | Multiples and Factors, Remainders

655-705 (Hard) | Multiples and Factors, Remainders hide tags

enigma123

31 Jan 2012, 16:25

246

16

45,701

by: bumpbot

28 Oct 2025, 09:22

ER

Is positive integer p even?

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

BrentGMATPrepNow

20 May 2019, 06:22

48

11

6,065

by: Bunuel

27 Oct 2025, 08:57

ER

What is the value of number X?

555-605 (Medium) | Multiples and Factors, Number Properties

555-605 (Medium) | Multiples and Factors, Number Properties hide tags

EgmatQuantExpert

13 Aug 2018, 01:59

45

6

7,849

by: bumpbot

26 Oct 2025, 09:58

ER

Is n/18 an integer? (1) 5n/18 is an integer. (2) 3n/18 is an integer.

805+ (Hard) | Multiples and Factors, Number Properties

805+ (Hard) | Multiples and Factors, Number Properties hide tags

1, 2

shinewine

29 Aug 2006, 14:07

324

21

49,016

by: bumpbot

22 Oct 2025, 00:58

ER

If k is a positive integer, is k^(1/2) an integer?

605-655 (Medium) | Multiples and Factors, Number Properties

605-655 (Medium) | Multiples and Factors, Number Properties hide tags

Bunuel

24 Dec 2017, 01:24

8

11

3,766

by: bumpbot

18 Oct 2025, 23:22

ER

A and k are integer numbers higher than 3. A is a prime number but k i

805+ (Hard) | Multiples and Factors, Number Properties

805+ (Hard) | Multiples and Factors, Number Properties hide tags

diota2004

28 Feb 2017, 09:46

32

7

3,235

by: Bunuel

18 Oct 2025, 12:29

ER

Is Integer x a prime number? 1) x has only one odd factor 2) x has on

655-705 (Hard) | Multiples and Factors, Number Properties

655-705 (Hard) | Multiples and Factors, Number Properties hide tags

GMATinsight

20 May 2017, 06:20

5

3

4,436

by: nandini14

14 Oct 2025, 10:35

ER

If k, m, and t are positive integers and k/6 + m/4 = t/12, do t and 12

655-705 (Hard) | Multiples and Factors

655-705 (Hard) | Multiples and Factors hide tags

Stiv

05 Feb 2019, 03:31

270

9

38,855

by: egmat

13 Oct 2025, 10:00

ER

If n is an integer, then n is divisible by how many positive integers?

505-555 (Easy) | Multiples and Factors, Number Properties

505-555 (Easy) | Multiples and Factors, Number Properties hide tags

Bunuel

24 Dec 2013, 03:48

121

15

36,370

by: Bunuel

10 Oct 2025, 00:46

ER

If b is the product of three consecutive positive integers c, c + 1

605-655 (Medium) | Multiples and Factors

605-655 (Medium) | Multiples and Factors hide tags

gmatt1476

21 Sep 2019, 19:54

106

9

13,966

by: bumpbot

10 Oct 2025, 00:01

ER

If positive integer x is a multiple of 6 and positive integer y is a

555-605 (Medium) | Multiples and Factors

555-605 (Medium) | Multiples and Factors hide tags

1, 2

rahulraao

09 Oct 2005, 01:53

245

21

48,175

by: bumpbot

09 Oct 2025, 12:08

ER

If s is an integer, is 24 a divisor of s ?

555-605 (Medium) | Multiples and Factors

555-605 (Medium) | Multiples and Factors hide tags

gmatt1476

21 Sep 2019, 19:27

79

16

14,954

by: bumpbot

09 Oct 2025, 11:30

ER

A function is defined as f(n) = the number of factors of n. If f(p*q*r

605-655 (Medium) | Functions and Custom Characters +2 tags

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TARGET730

12 Mar 2015, 03:02

45

9

7,154

by: bumpbot

09 Oct 2025, 01:50

ER

If x and y are positive integers such that x = 8y + 12, what is the

705-805 (Hard) | Multiples and Factors, Number Properties

705-805 (Hard) | Multiples and Factors, Number Properties hide tags

1, 2

metallicafan

31 Aug 2010, 01:22

956

33

107,591

by: egmat

03 Oct 2025, 03:34

ER

If r and s are integers, is r+s divisible by 3?

505-555 (Easy) | Multiples and Factors

505-555 (Easy) | Multiples and Factors hide tags

nimc2012

08 Feb 2012, 02:11

59

9

17,903

by: bumpbot

28 Sep 2025, 21:19

ER

If a, b, and c are positive integers and a/6+b/5 =c/30, is c divisibl

555-605 (Medium) | Multiples and Factors, Number Properties

555-605 (Medium) | Multiples and Factors, Number Properties hide tags

BillyZ

01 May 2017, 05:59

28

6

9,723

by: bumpbot

26 Sep 2025, 05:13

ER

Is x divisible by 405 ? (1) 27 is a factor of x (2) x is a multiple o

655-705 (Hard) | Multiples and Factors

655-705 (Hard) | Multiples and Factors hide tags

Bunuel

27 Feb 2023, 08:30

23

7

6,131

by: bumpbot

24 Sep 2025, 12:01

ER

The least common multiple of positive integers p and q is 72. What is

805+ (Hard) | Multiples and Factors, Number Properties

805+ (Hard) | Multiples and Factors, Number Properties hide tags

Russ19

04 Feb 2020, 11:18

44

5

7,933

by: bumpbot

24 Sep 2025, 09:33