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# Which of the following is a multiple of all three integers 2, 3, and 5

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Which of the following is a multiple of all three integers 2, 3, and 5  [#permalink]

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16 Jan 2019, 08:45
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Which of the following is a multiple of all three integers 2, 3, and 5?

A. 525

B. 560

C. 615

D. 620

E. 660

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Joined: 17 Feb 2018
Posts: 2
Re: Which of the following is a multiple of all three integers 2, 3, and 5  [#permalink]

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16 Jan 2019, 08:56
E) 660 - because it is divisible by 2,3 and 5

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Joined: 13 Feb 2018
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GMAT 1: 640 Q48 V28
Re: Which of the following is a multiple of all three integers 2, 3, and 5  [#permalink]

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16 Jan 2019, 08:59
1
1 approach:
LCM for 2, 3, 5 is 30 search multiples of 30 in answer choices, the correct answer choice must be divisible by 3 and 10

2 approach:
At a glance we need a multiple of 5 which is even, discard A and C. The rest of choices must be divisible by 3

Imo
Ans: E
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Re: Which of the following is a multiple of all three integers 2, 3, and 5  [#permalink]

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21 Jan 2019, 18:59
Which of the following is a multiple of all three integers 2, 3, and 5?

A. 525

B. 560

C. 615

D. 620

E. 660

Since the LCM of 2, 3, and 5 is 30, any multiple of 30 will be also a multiple of 2, 3 and 5.

Of the answer choices, only 660 is a multiple of 30.

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Re: Which of the following is a multiple of all three integers 2, 3, and 5   [#permalink] 21 Jan 2019, 18:59
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# Which of the following is a multiple of all three integers 2, 3, and 5

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