Question

Which of the following is the prime factorization for the number 2520?

A
${2}^{2} \times {3}^{2} \times 57$
B
$5 \times 7 \times 8 \times 9$
C
${2}^{3} \times {3}^{2} \times 5 \times 7$
D
${2}^{3} \times 5 \times 7 \times 9$

Answer 1

2520

= 10 * 252

= 2 * 5 * 2 * 126

= 2 * 5 * 2 * 2 * 63

= 2 * 5 * 2 * 2 * 7 * 3 * 3

= 2^3 * 3^2 * 5 * 7