Question

If n = 10800, then number of divisors of the form 4m + 2 is : mit der A 6 (B) 12 (C) 18 (D) 22​

Answer 1

Answer = 12

4m+2 (2m+1), In any divisor of the form 4m+2, 'a' should be exactly 1, So the number of divisors of the form 4m+2

1(3+1) (2+1)= 12

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Answer 2

root 5 is an irrational number

I think you should keep a track on basic maths