If 24 is a factor of h and 28 is a factor of k, must 21 be a factor of hk?

{x : x is a factor of 24}

3 is a factor of 15 and 24. Is 3 is a factor of their difference also?

3 is a factor of 15 and 24. Is 3 a factor of their difference also ?

Which fo the following statements are true? 15 is a factor of105 and 21 is also factor of 105.Then 36 and 6 are also factors of 105.

If a is a factor of both b and c, then a is a factor of (b-c) and (b + c). If 27 is a factor of a and b, then which of the following is factor of a + b?

If (x-1) is a factor of polynomial f(x) but not of g(x), then it must be a factor of

Show that m-1 is a factor of m^(21)-1

Prime factors of 24.

Sigma factor factor is a component of