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Question

The largest integer n such that 33! is divisible by 2n is

A
30
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B
31
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C
32
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D
None of thes
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Solution

The correct option is B 31
In terms of prime factors 33! can be written as 2a.3d.5c.7d....
E2(33!)=332+3322+3323+3324+3325+3326=16+8+4+2+1=31
Hence the eexponential of 2 in 33! is 31 so largest value of n is 31.

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