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The product of the prime integers between 43 and 50, inclusive, is:

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The product of the prime integers between 43 and 50, inclusive, is:  [#permalink]

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New post 16 Mar 2016, 11:19
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A
B
C
D
E

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Question Stats:

86% (00:57) correct 14% (00:54) wrong based on 128 sessions

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Re: The product of the prime integers between 43 and 50, inclusive, is:  [#permalink]

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New post 17 Mar 2016, 03:52
1
Prime integers with in the range specified is 43,47
Product results as = 43X47 = 2021

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Re: The product of the prime integers between 43 and 50, inclusive, is:  [#permalink]

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New post 17 Mar 2016, 19:50
only prime number bet ween 43 and 50 inclusive are 43 and 47
thus 43*47 = 2021

Ans: D
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Re: The product of the prime integers between 43 and 50, inclusive, is:  [#permalink]

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New post 18 Nov 2019, 09:42
Bunuel wrote:
The product of the prime integers between 43 and 50, inclusive, is:

A) 50! – 40!
B) 99,029
C) 2,303
D) 2,021
E) 2,000


There are only two prime numbers between 43 and 50, inclusive; which are 43 and 47. Thus, the product of those two prime numbers is:

43 x 47 = 2,021

Answer: D
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Re: The product of the prime integers between 43 and 50, inclusive, is:  [#permalink]

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New post 04 Dec 2019, 14:25
Prime numbers between 43 and 50, inclusive: 43 and 47

It is not necessary further calculations, since 3x7 = 21.

Only option D has a number that units digit is 1.
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Re: The product of the prime integers between 43 and 50, inclusive, is:  [#permalink]

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New post 08 Dec 2019, 20:24
Bunuel wrote:
The product of the prime integers between 43 and 50, inclusive, is:

A) 50! – 40!
B) 99,029
C) 2,303
D) 2,021
E) 2,000


The only prime numbers in the given interval are 43 and 47. Their product is:

43 x 47 = 2,021

We actually don’t have to multiply the numbers; we know the product of 43 and 47 has a units digit of 1, and the only answer choice with a units digit of 1 is D (50! and 40! both have their units digit equal to 0 and thus, the units digit of 50! - 40! is also 0).

Answer: D
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Scott@TargetTestPrep.com
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self study course

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Re: The product of the prime integers between 43 and 50, inclusive, is:   [#permalink] 08 Dec 2019, 20:24
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