Question

Determine the prime factorization of 90.








A.

2 • 3^2 • 5








B.

2^3 • 11








C.

2^2 • 3 • 5








D.

2^2 • 11

Answer 1

a

Answer 2

I always start by trying to cut it in half, if I can

90 = 45*2
now 2 is prime so we are done there, but 45 = 9*5
and 5 is prime so we are done there, so we look at 9 = 3*3

so 90=45*2 = 9*5*2 = 3*3*5*2 = 3^2*5*2

Answer 3

@song6 read the rules, that does not help anyone....

Answer 4

thank you. I got messed up since I thought 3^2 was 6, those always confuse me

Answer 5

easy thing to do...

Answer 6

ok....