Question

Which shows the prime factorization of twenty-eight ?
Answer

2 squared times 7

2 times 7

2 times 7 squared

2 squared times 7 squared

Answer 1

All of the numbers are prime (2 and 7) or their powers.
You'll need to find the one that gives 28 as the product.

Answer 2

How do I do that?

Answer 3

2*2*7 = 28

Which can be written as

2^2*7 = 28

Answer 4

Side note: 2^2 means "2 squared"