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For any integer P greater than 1, P! denotes the product of all the in

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For any integer P greater than 1, P! denotes the product of all the in  [#permalink]

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New post 01 Dec 2018, 09:21
00:00
A
B
C
D
E

Difficulty:

  55% (hard)

Question Stats:

48% (01:23) correct 52% (01:33) wrong based on 26 sessions

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GMATbuster's Weekly Quant Quiz#11 Ques #7


For Questions from earlier quizzes: Click Here


For any integer P greater than 1, P! denotes the product of all the integers from 1 to P, inclusive. If one integer is selected at random between 5! And 5! + 10, inclusive, what is the probability that the chosen number will have only two factors?

A)0
B)1/11
C)1/10
D)2/11
E)2/10

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Re: For any integer P greater than 1, P! denotes the product of all the in  [#permalink]

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New post 01 Dec 2018, 09:41
5! = 120
5! + 10 = 130
From 120 to 130 (total N = 11)
only 127 is prime number
Probability = 1/11
hence choice B
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Re: For any integer P greater than 1, P! denotes the product of all the in  [#permalink]

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New post 01 Dec 2018, 09:56
the number with only 2 factors are called prime numbers. firs find the range of numbers given by question from 5! (120)to 5!+10(130) inclusive 130-120+1=11
primer number in only one 127
1/11
Answer choice B

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Re: For any integer P greater than 1, P! denotes the product of all the in  [#permalink]

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New post 01 Dec 2018, 10:14
workout wrote:

GMATbuster's Weekly Quant Quiz#11 Ques #7


For Questions from earlier quizzes: Click Here


For any integer P greater than 1, P! denotes the product of all the integers from 1 to P, inclusive. If one integer is selected at random between 5! And 5! + 10, inclusive, what is the probability that the chosen number will have only two factors?

A)0
B)1/11
C)1/10
D)2/11
E)2/10

IMO-D


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Re: For any integer P greater than 1, P! denotes the product of all the in &nbs [#permalink] 01 Dec 2018, 10:14
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For any integer P greater than 1, P! denotes the product of all the in

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