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Question

The number of ways in which the number 10800 can be resolved as a product of two factors.

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Solution

Let we have a no. N which we can factorize as
N=αk11αk32...αknn
Where α1,α2,...,αn are coprime of each other and k1,k2,...,kn are natural numbers
Now, if N is not a perfect square then the no. of ways in which it can be resolved as a product of two factors is given as
(k1+1)(k2+2)....(kn+1)2
Here N=10800
It's prime factorization will be
10800=24×33×52
Hence N is not a perfect square
So, (4+1)×(3+1)×(2+1)2
=30 ways.

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