Question

What are 3 whole numbers that when multiplied together equal 16?

Answer 1

You could do either 1-1-16 or 8-2-1

Answer 2

Well, the prime factors of 16 = 2^4, and there could be
1, 1, 16
1, 2, 8
1, 4, 4
2, 2, 4.

These triplets multiply to get 16.