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Re: What is the smallest integer that can be divided by the prod [#permalink]
12 Nov 2017, 23:35

1

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Prime numbers are 2, 3, 5, 7, 11, ...

Since the answer choices are between 7 and 35, and one of the divisors is 7, we know that we have to focus on small prime numbers otherwise we would get fractions.

Now, 7 is divisible only by 7 and 1 and 1 is not a prime, so we exclude it.

14 is divisible by 7 and 2, which are two primes, but the result would be 1 that is not prime.

24 is not divisible even by 7

28 is divisible by 7 and 2 and the result is 28/2*7 = 2 that is still prime. That's our answer!

Answer D

greprepclubot

Re: What is the smallest integer that can be divided by the prod
[#permalink]
12 Nov 2017, 23:35