Question

Which of the following are prime factorizations of the number 100? Check all

that apply.
A. 5, 2, 2,5
B. 2, 5, 10
C. 5, 10, 2
D. 5, 2, 5, 2

Answer 1

Explanation:

A. 5, 2, 2, 5 is a prime factorization of 100 since 5 and 2 are prime factors of 100 and multiplying them gives 100.

B. 2, 5, 10 is not a prime factorization of 100 since 10 is not a prime factor of 100.

C. 5, 10, 2 is not a prime factorization of 100 since 10 is not a prime factor of 100.

D. 5, 2, 5, 2 is not a prime factorization of 100 since it can be simplified as 5x2x5x2 = 100, but it is not a unique prime factorization.

Therefore, the correct answer is A. 5, 2, 2, 5.