Question

Find all of the numbers less than100 that have at least 2 and at least one 5 in their prime factorization

Answer 1

Answer:
`10, 20, 30, 40, 50, 60, 70, 80, 90`

Explanation:

If the numbers have at least one 2 and at least one 5, then they are multiples of 10 (since
`10=2 * 5`).

So, these numbers are
`10, 20, 30, 40, 50, 60, 70, 80, 90`.