Write 80 as a product of primes.
Use index notation when giving your answer.

80 = × 5

Step-by-step explanation:

Divide repeatedly by 2 until finish, then divide by next  largest prime number

80 ÷ 2 = 40

40 ÷ 2 = 20

20 ÷  2= 10

10 ÷ 2 = 5

5 ÷ 5 = 1 ← Finish when 1 is reached

Then 80 = 2 × 2 × 2 × 2 × 5 = × 5

answer:

a=9

step-by-step explanation: lmk if you need a explanation