Question

All the prime factors of 160

Answer 1

2 and 5. 1 isn't apart of the list because the definition of a prime number is having 1 and itself as a factor. 1 only has the number 1.

Answer 2

2x2x2x2x2x5
     OR
2^5 x 5 (which is the same as the top)

Hope that helps! =3