Find the number of divisor of 1420.
Solution (By Examveda Team)
1420 = 2*2*5*71 = (20+21+22)*(50+51)*(710+711)Here, we count the number of terms in the expansion.
In the above expansion, 1420 contains number of terms = (3)*(2)*(2) = 12
Then, the number of factors or divisors = 12.
The theory on finding out divisor or standard for of a number is here.
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