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Question

In how many ways can the number 7056 be resolved into two factors?

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Solution

7056=24×32×72
A number of form apbqcr... where a,b,c are all prime and p,q,r are all even can be resolved in two factors in 12[(p+1)(q+1)(r+1)....+1] ways
So number of ways of resolving the number =12{(4+1)(2+1)(2+1)+1}=462=23

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