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Question

In how many ways the number 7056 can be resolved as a product of 2 factors.

A
17
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B
18
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C
22
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D
23
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Solution

The correct option is C 23
We can write 7056 as : 72.32.24
So number of ways of writing it as a product of 2 factors = (2+1)(2+1)(4+1)+12
=462
=23

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