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# How many integers are divisible by 3 are there between 10!

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CEO
Joined: 21 Jan 2007
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How many integers are divisible by 3 are there between 10! [#permalink]

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02 Nov 2007, 06:46
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

How many integers are divisible by 3 are there between 10! and 10! + 20 inclusive?

6
7
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10
Manager
Joined: 01 Nov 2007
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02 Nov 2007, 09:36

Since it is 10! it will be a multiple of 3 (10*8*7*6*5*4*3*2*1)

so since first number is divisible by 3 there will be six more numbers.

Therefore total 7 Nos

Director
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02 Nov 2007, 09:38
i concur with 7.. you can't forget to include 10!
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