Question

write 99 as a product of prime factors. 99 = \square

Explanation:

Step1: Split 99 into two factors

$99 = 9 \times 11$

Step2: Factor 9 into primes

$9 = 3 \times 3$

Step3: Combine prime factors

$99 = 3 \times 3 \times 11$

Answer:

$3 \times 3 \times 11$ (or $3^2 \times 11$)