How many even divisors of 1600 are not multiples of 16?
1600 is divisible by 16 ,
==> 16*10*10
= 16 * 2^2 * 5*2
So total multiple of number with out 16 = (2+1)(2+1) = 3*3 = 9
Odd divisors = (2+1) = 3
even divisors = 9-3 = 6
Option B is answer
1600 is divisible by 16 ,
==> 16*10*10
= 16 * 2^2 * 5*2
So total multiple of number with out 16 = (2+1)(2+1) = 3*3 = 9
Odd divisors = (2+1) = 3
even divisors = 9-3 = 6
Option B is answer
