Mathematics for IGCSE & O level - Number (Section 1 - No. 18)
The prime factorization of 120 is 2^3 x 3 x 5. Based on this, which of the following is a factor of 120?
7
16
6
25
解释
The factors of 120 are formed by combinations of its prime factors. Since 2 and 3 are prime factors of 120, the product of 2 and 3, which is 6, is also a factor of 120.