Question

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

Answer 1

2^4 * 5

Explanation:

Answer 2

80 =
`2^(4)` × 5

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 =
`2^(4)` × 5