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Bunuel
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If a and b are both prime integers, which of the following could not 04 Apr 2018, 22:13
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B
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35% (medium)

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61% (01:19) correct 39% (01:35) wrong based on 262 sessions

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If a and b are both prime integers, which of the following could not be the product of a and b?

A. 14
B. 102
C. 133
D. 142
E. 237
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B
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If a and b are both prime integers, which of the following could not 04 Apr 2018, 22:35
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Bunuel
If a and b are both prime integers, which of the following could not be the product of a and b?

A. 14
B. 102
C. 133
D. 142
E. 237

Checking from options:102=3*2*13
Option B.
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If a and b are both prime integers, which of the following could not 10 Apr 2018, 11:13
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Bunuel
If a and b are both prime integers, which of the following could not be the product of a and b?

A. 14
B. 102
C. 133
D. 142
E. 237

Since 14 = 2 x 7, 133 = 7 x 19, 142 = 2 x 71, 237 = 3 x 79, only 102 cannot be the product of two prime numbers.

Answer: B
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If a and b are both prime integers, which of the following could not 15 Apr 2018, 12:29
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Bunuel
If a and b are both prime integers, which of the following could not be the product of a and b?

A. 14
B. 102
C. 133
D. 142
E. 237

Do Prime Factorization and find which answer will have more than 2 prime factors.

102 --> 2x51 --> 2x3x17. This is 3 factors, so you can not have AB=102 while A and B are both Prime numbers.

Answer: B
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If a and b are both prime integers, which of the following could not 26 Oct 2019, 22:38
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A) 14----7*2
B) 102----17*3*2-------3 factors---a*b*c
C) 133----19*7
D) 142----2*71
E) 237 ---3*79

Hence option B is correct choice.
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If a and b are both prime integers, which of the following could not 13 May 2022, 03:36
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