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QZP

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How do I do this Q?

Find what power of 2,10 is a divisor of 10! (I'm assuming highest power but the question doesn't say)
 

QZP

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Oh two separate questions: 1. what power of 2 is a divisor of 10!
2. what power of 10...
 

QZP

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There's also what power of 2,5,7,13 is a divisor of 100!
 

Carrotsticks

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Well 4 is a power of 2, and 4 is a divisor of 100!

Likewise, 100 is a power of 10, and it too is a divisor of 100!

In general, so long as there exists some integer A and B such that A^B is less than 100, it will always be divisible by 100! since 100! contains all the positive integers from 1 to 100.

Not too sure what your question is, unless that was it.
 

Sy123

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My interpretation of the question:

What powers of 2 are divisors of 10!
?




So, powers of 2 that divide into 10! is: 2, 4, 8, 16, 32, 64, 128

Since 10 = 2 * 5

So, powers of 10 that divide 10! is: (2 * 5), (2^2 * 5^2) = 10, 100.

You can do the same with 3, 7, 5 etc quite easily
 

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