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ANKUR GUPTA Grade: 12
        

Total number of ways of factorising the number of 676 in two factors,that are prime to each other is equal to..........

7 years ago

Answers : (1)

Pratham Ashish
17 Points
										

hi,


on factorising 676 = 2^2 * 13^2


so, we get to prime numbers 2 & 13


 for gettig two prime factors, we should take care of that there happens no mixing of these prime no.


you can treat 2^2 as A & 13 ^2 as B 


then ,  676 = A * B


its clear that only two cases can happen,


1) A =1 , B = 676


2) A = 2^2  , B =  13 ^2


ans ... 2 no. of ways are possible


 

7 years ago
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