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What is the smallest prime factor of 1,532,475?
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12 Feb 2021, 06:35
12 Feb 2021, 06:35
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Question Stats:
85% (00:32) correct
14% (00:21) wrong based on 14 sessions
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What is the smallest prime factor of \(1,532,475\)?
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3
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Re: What is the smallest prime factor of 1,532,475?
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12 Feb 2021, 07:03
12 Feb 2021, 07:03
1
Carcass wrote:
What is the smallest prime factor of \(1,532,475\)?
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Show: :: OA
3
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We can immediately see that 1,532,475 is NOT divisible by 2.
And we can see that 1,532,475 IS divisible by 5
At this point, we need only determine whether 1,532,475 is divisible by 3
If an integer is divisible by 3, then the sum of its digits will be divisible by 3.
1+5+3+2+4+7+5 =27, and since 27 is divisible by 3, we know that 1,532,475 is divisible by 3.
Answer: 3
gmatclubot
Re: What is the smallest prime factor of 1,532,475? [#permalink]
12 Feb 2021, 07:03
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