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For how many positive integer values of n is 3n a factor of 15!?

 Jun 8, 2022
 #1
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45 integer values

 Jun 9, 2022
 #2
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15! / 3 ==2^11 × 3^5 × 5^3 × 7^2 × 11 × 13

 

Integers values of n== 3,456 - which are also the divisors of 15! / 3.

 Jun 9, 2022

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