Question

Which number is missing from the following prime factorization expression?

132 = 2 x 2 x __ x 11
A. 3
B. 5
C. 7
D. 9

Answer 1

A. 3
2*2=4
4*3=12
12*11=132

Answer 2

A. 3

Explanation:

132 = 2 · 2 · x · 11

132 = 4 · 11 · x

132 = 44 · x

132 ÷ 44 = x

3 = x