Question

the number of divisors of the form 12z+6(z is any natural number) of the number 25200 .?

Answer 1

25200 = 2 * 2* 2*2*3*3*5*5*7
are the prime factors of 25200
will that help?

Answer 2

numbers of form 12z+6 are 18,30,42,54....

Answer 3

this is an arithmetic series with d = 12, a = 18
any number greater than 12600 will not be a divisor

Answer 4

- this is all my thoughts - i've no clear idea how to do this!!

Answer 5

not all the numbers in the series divide into 25200 - 54 does not