Question

What are numbers under 100 with at least one 5 and at least one 2 in their prime factorization

Answer 1

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

Step-by-step explanation: 5x2=10, 10+(5x2)=20, and so on until 90 (the limit under 100).