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What is the largest integer n such that 3^n is a factor of 21! ?

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jamboree
any short cut
What is the largest integer n such that 3^n is a factor of 21! ?
A. 7
B. 9
C. 10
D. 12
E. 15

2 Answers

Hitesh
0
The answer is 9
answered Sep 17, 2016 by Beginner (1 point)
RacDevore
0
Is the answer 9
answered Jul 18, 2016 by Beginner (1 point)
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