GMAT Club Forum

ER

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

Bunuel

25 Oct 2022, 08:11

128

11

56,886

by: Bunuel

12 May 2025, 05:54

ER

100 Hardest and easiest questions for DS as of June 2025

1, 2

Bunuel

21 Aug 2015, 03:42

827

23

178,387

by: Bunuel

02 Sep 2024, 23:51

ER

DS Question Directory by Topic and Difficulty

bb

07 Mar 2012, 08:58

1,483

0

472,010

by: bb

07 Mar 2012, 08:58

ER

If p/r = 3, What is the value of r ?

Sub 505 Level | Multiples and Factors, Number Properties

Sub 505 Level | Multiples and Factors, Number Properties hide tags

Bunuel

23 May 2020, 04:37

4

5

3,426

by: bumpbot

02 Apr 2025, 08:12

ER

Is n divisible by 12 ? (1) n/6 is an integer. (2) n/4 is an integer.

Sub 505 Level | Multiples and Factors

Sub 505 Level | Multiples and Factors hide tags

Bunuel

18 Oct 2019, 05:06

10

3

6,136

by: bumpbot

12 Nov 2024, 01:55

ER

Is the integer k equal to 36 ? (1) k is even and is a multiple of 9.

Sub 505 Level | Multiples and Factors

Sub 505 Level | Multiples and Factors hide tags

Bunuel

01 Jul 2018, 20:52

4

3

6,375

by: bumpbot

31 Dec 2023, 18:58

ER

If y is an integer, is y^3 divisible by 8? (1) y is even. (2) y^3 - y

505-555 Level | Multiples and Factors

505-555 Level | Multiples and Factors hide tags

Bunuel

06 May 2020, 03:05

19

7

6,621

by: bumpbot

30 Apr 2024, 10:07

ER

If n is a positive integer, is n divisible by at least six positive in

505-555 Level | Multiples and Factors, Number Properties

505-555 Level | Multiples and Factors, Number Properties hide tags

Bunuel

16 Apr 2020, 03:43

14

4

6,808

by: bumpbot

16 Aug 2023, 05:31

ER

If ▢ and △ represent digits, is the 5-digit number 14,2▢△ divisible

555-605 Level | Multiples and Factors

555-605 Level | Multiples and Factors hide tags

Bunuel

23 May 2020, 08:47

22

8

7,068

by: bumpbot

13 Apr 2023, 05:22

ER

What is the greatest common divisor of integers r and s ?

505-555 Level | Multiples and Factors

505-555 Level | Multiples and Factors hide tags

Bunuel

23 May 2020, 07:15

25

7

7,576

by: bumpbot

25 Dec 2024, 05:18

ER

Are both of the integers x and y divisible by 3? (1) x + y and x – y

555-605 Level | Multiples and Factors

555-605 Level | Multiples and Factors hide tags

Bunuel

23 May 2020, 08:31

33

10

9,107

by: Bunuel

07 Jun 2023, 01:07

ER

Is the integer n a multiple of 15 ? (1) n is a multiple of 20 (2) n

555-605 Level | Multiples and Factors

555-605 Level | Multiples and Factors hide tags

Wayxi

30 Jan 2011, 21:39

40

11

9,672

by: bumpbot

02 Apr 2025, 09:15

ER

If integer p is a factor of 42, is p a prime number?

555-605 Level | Multiples and Factors, Number Properties

555-605 Level | Multiples and Factors, Number Properties hide tags

Bunuel

23 May 2020, 07:36

22

6

9,873

by: bumpbot

13 Jul 2024, 01:42

ER

If p is an integer greater than 1, is p a prime number?

505-555 Level | Multiples and Factors

505-555 Level | Multiples and Factors hide tags

RSOHAL

21 Dec 2015, 16:00

28

5

10,847

by: Bunuel

23 Jun 2023, 01:25

ER

Is the positive integer n the square of an integer?

655-705 Level | Multiples and Factors, Number Properties

655-705 Level | Multiples and Factors, Number Properties hide tags

Pdirienzo

19 Feb 2019, 10:50

106

13

11,722

by: Vishwesh08

18 Mar 2025, 10:11

ER

How many different factors does the integer n have?

505-555 Level | Multiples and Factors, Number Properties

505-555 Level | Multiples and Factors, Number Properties hide tags

sagarsabnis

05 Jan 2010, 12:18

47

12

13,158

by: bumpbot

13 Dec 2024, 03:05

ER

If integer p is greater than 1, is p a prime number?

Sub 505 Level | Multiples and Factors, Number Properties

Sub 505 Level | Multiples and Factors, Number Properties hide tags

Bunuel

05 Jul 2018, 01:35

12

6

13,877

by: surah

30 Oct 2023, 22:15

ER

If a and b are positive itegers, what is the value of a + b?

505-555 Level | Multiples and Factors, Number Properties

505-555 Level | Multiples and Factors, Number Properties hide tags

Stiv

02 Jul 2012, 03:47

57

8

14,603

by: bumpbot

30 Apr 2024, 10:03

ER

Is n(n+1)(n+2) divisible by 24?

555-605 Level | Multiples and Factors, Number Properties

555-605 Level | Multiples and Factors, Number Properties hide tags

PrepTap

29 Apr 2015, 04:56

60

9

16,157

by: Bunuel

19 Oct 2022, 09:42

ER

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

705-805 Level | Multiples and Factors

705-805 Level | Multiples and Factors hide tags

kashishh

26 Apr 2012, 02:54

84

8

16,317

by: bumpbot

11 Nov 2024, 04:41

ER

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

505-555 Level | Multiples and Factors

505-555 Level | Multiples and Factors hide tags

nimc2012

07 Feb 2012, 20:43

56

9

16,601

by: bumpbot

30 Aug 2024, 19:07

ER

If x and y are both integers greater than 1, is x a multiple

555-605 Level | Multiples and Factors

555-605 Level | Multiples and Factors hide tags

chineseburned

04 May 2008, 19:26

63

14

18,460

by: bumpbot

20 Mar 2025, 09:19

ER

The positive integer k has exactly two positive prime

655-705 Level | Multiples and Factors, Number Properties

655-705 Level | Multiples and Factors, Number Properties hide tags

testprep2010

20 Jun 2010, 12:38

131

13

21,863

by: bumpbot

10 Nov 2024, 08:07

ER

Is the integer n a multiple of 15?

505-555 Level | Multiples and Factors

505-555 Level | Multiples and Factors hide tags

zz0vlb

28 Apr 2010, 07:59

50

13

23,623

by: Broc

21 Dec 2024, 13:29

ER

If the prime numbers p and t are the only prime factors of

655-705 Level | Multiples and Factors, Number Properties

655-705 Level | Multiples and Factors, Number Properties hide tags

1, 2

phoenixgmat

26 Oct 2009, 14:53

176

21

28,324

by: bumpbot

30 May 2025, 08:54

ER

If n and t are positive integers, is n a factor of t ?

555-605 Level | Exponents, Multiples and Factors

555-605 Level | Exponents, Multiples and Factors hide tags

TOUGH GUY

12 Dec 2005, 06:26

177

14

29,068

by: bumpbot

20 Aug 2024, 10:37

ER

If x and y are positive integers, is xy a multiple of 8?

655-705 Level | Multiples and Factors, Number Properties

655-705 Level | Multiples and Factors, Number Properties hide tags

Orange08

09 Oct 2010, 11:50

175

14

31,127

by: bumpbot

22 Jan 2025, 02:34

ER

If k is an integer greater than 1, is k equal to 2^r for some positive

655-705 Level | Exponents, Multiples and Factors

655-705 Level | Exponents, Multiples and Factors hide tags

arjunrampal

29 Dec 2009, 10:00

184

12

31,683

by: bumpbot

27 May 2025, 06:42

ER

Is the integer r divisible by 3?

Sub 505 Level | Multiples and Factors

Sub 505 Level | Multiples and Factors hide tags

jimmyjamesdonkey

18 May 2008, 18:21

54

12

32,023

by: bumpbot

01 Sep 2023, 13:48

ER

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

655-705 Level | Fractions and Ratios, Multiples and Factors

655-705 Level | Fractions and Ratios, Multiples and Factors hide tags

gmatbull

19 Aug 2010, 02:57

199

15

37,364

by: bumpbot

17 Oct 2024, 06:03

ER

Is the integer k divisible by 4 ? (1) 8k is divisible by 16. (2) 9k is

555-605 Level | Multiples and Factors

555-605 Level | Multiples and Factors hide tags

r019h

30 Oct 2007, 20:27

127

6

38,369

by: bumpbot

29 Nov 2024, 01:36

ER

At a souvenir shop, all posters are priced equally and all

505-555 Level | Multiples and Factors

505-555 Level | Multiples and Factors hide tags

bulletpoint

15 Oct 2013, 08:04

116

12

38,617

by: bumpbot

11 Sep 2023, 17:36

ER

If a, b, k, and m are positive integers, is a^k a factor of b^m?

505-555 Level | Multiples and Factors

505-555 Level | Multiples and Factors hide tags

Bunuel

13 Jun 2019, 04:22

73

8

38,674

by: bumpbot

24 Jun 2025, 04:10

ER

The integers m and p are such that 2<m<p, and m is not a

705-805 Level | Multiples and Factors +2 tags

705-805 Level | Multiples and Factors, Number Properties, Remainders hide tags

LM

06 May 2010, 12:30

342

19

40,168

by: bumpbot

17 May 2025, 06:19

ER

If K is an integer and 2 < K < 8, what is the value of K ?

555-605 Level | Multiples and Factors

555-605 Level | Multiples and Factors hide tags

blog

31 Jan 2008, 19:32

91

13

41,608

by: bumpbot

26 May 2025, 03:15

ER

If N is a positive Integer, is the units digit of N equal to zero?

505-555 Level | Multiples and Factors

505-555 Level | Multiples and Factors hide tags

meaglesp345

20 Mar 2010, 14:57

121

14

42,879

by: bumpbot

09 Nov 2024, 11:15

ER

If x is a positive integer, what is the least common multiple of x, 6

555-605 Level | Multiples and Factors

555-605 Level | Multiples and Factors hide tags

mrsmarthi

09 Mar 2009, 21:12

269

17

53,184

by: bumpbot

06 Jun 2024, 10:56

ER

Is the integer n odd? (1) n is divisible by 3 (2) 2n is divisible by

605-655 Level | Multiples and Factors

605-655 Level | Multiples and Factors hide tags

Nihit

15 Nov 2008, 09:44

275

15

53,233

by: bumpbot

05 Jun 2024, 01:17

ER

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

555-605 Level | Multiples and Factors, Number Properties

555-605 Level | Multiples and Factors, Number Properties hide tags

hellzangl

22 Aug 2013, 04:14

257

16

54,434

by: bumpbot

16 Oct 2024, 01:06

ER

If d is a positive integer and f is the product of the first 30 positi

605-655 Level | Exponents +2 tags

605-655 Level | Exponents, Multiples and Factors, Number Properties hide tags

1, 2

enigma123

28 Jan 2012, 18:13

481

22

56,840

by: bumpbot

01 Feb 2025, 09:14

ER

If a, b, and c are prime numbers, do (a+b) and c have a common factor

555-605 Level | Multiples and Factors, Number Properties

555-605 Level | Multiples and Factors, Number Properties hide tags

amitpaul527

26 Apr 2016, 18:01

225

16

58,552

by: bumpbot

17 Dec 2023, 16:00

ER

If the integer n is greater than 1, is n equal to 2?

655-705 Level | Multiples and Factors, Number Properties

655-705 Level | Multiples and Factors, Number Properties hide tags

1, 2

dimitri92

23 May 2010, 21:28

402

24

60,042

by: bumpbot

17 Jun 2025, 06:43

ER

If x is an integer, is (x^2+1)(x+5) an even number?

505-555 Level | Multiples and Factors, Number Properties

505-555 Level | Multiples and Factors, Number Properties hide tags

1, 2

mybudgie

04 Nov 2010, 18:37

236

21

62,085

by: Krunaal

10 Jan 2025, 08:08

ER

Is the integer x divisible by 6?

555-605 Level | Multiples and Factors, Number Properties

555-605 Level | Multiples and Factors, Number Properties hide tags

jackychamp

14 Feb 2008, 12:37

222

18

62,121

by: bumpbot

24 Apr 2025, 11:08

ER

Is the positive integer x divisible by each integer from 2 through 6 ?

605-655 Level | Multiples and Factors

605-655 Level | Multiples and Factors hide tags

pego2008

14 May 2016, 03:14

466

17

62,886

by: bumpbot

13 Feb 2025, 03:38

ER

If k is a positive integer and n = k(k + 7), is n divisible by 6?

605-655 Level | Multiples and Factors, Remainders

605-655 Level | Multiples and Factors, Remainders hide tags

1, 2

Jem2905

02 Nov 2013, 14:01

333

21

62,982

by: bumpbot

24 Apr 2025, 04:39

ER

An integer greater than 1 that is not prime is called composite.

605-655 Level | Multiples and Factors, Number Properties

605-655 Level | Multiples and Factors, Number Properties hide tags

XxxyyY

25 Jun 2006, 16:05

378

19

69,354

by: Bunuel

06 Jul 2025, 12:57

ER

If r and s are positive integers, is r/s an integer?

555-605 Level | Multiples and Factors

555-605 Level | Multiples and Factors hide tags

1, 2

BANON

23 Feb 2012, 08:13

356

22

72,638

by: bumpbot

22 Aug 2024, 06:35

ER

If n and t are positive integers, what is the greatest prime factor of

655-705 Level | Multiples and Factors

655-705 Level | Multiples and Factors hide tags

enigma123

29 Jan 2012, 17:24

508

19

83,251

by: bumpbot

27 Sep 2024, 09:27

ER

What is the greatest common divisor of positive integers m and n ?

605-655 Level | Multiples and Factors, Number Properties

605-655 Level | Multiples and Factors, Number Properties hide tags

1, 2

lahoosaher

07 Jun 2009, 11:12

396

20

88,376

by: bumpbot

02 Oct 2024, 08:15

ER

If x and y are integers greater than 1, is x a multiple of y?

605-655 Level | Multiples and Factors

605-655 Level | Multiples and Factors hide tags

enigma123

29 Jan 2012, 16:21

536

11

92,541

by: bumpbot

15 Sep 2024, 02:30

ER

If n and k are positive integers, is n divisible by 6?

555-605 Level | Multiples and Factors

555-605 Level | Multiples and Factors hide tags

tarek99

27 Aug 2009, 17:15

334

12

93,865

by: bumpbot

23 Jun 2025, 15:21

ER

Does the integer k have a factor p such that 1 < p < k ?

655-705 Level | Multiples and Factors, Number Properties

655-705 Level | Multiples and Factors, Number Properties hide tags

1, 2

gmatcracker2010

19 Jun 2010, 03:49

935

37

98,146

by: Aboyhasnoname

16 Jun 2025, 04:45

Data Sufficiency (DS)