12 = 22 × 3
It is: 3*3 = 9
327 = 3 × 109
2*2*2*3*3*5
Yes, of 72
144 = 24 × 32
It is in exponents: 22*32 = 36
720 = 24 × 32 × 5
As a product of its prime factors in exponents: 23*32 = 72
2 x 32 x 5 x 7 = 630
225 = 3 x 3 x 5 x 5 or 32 x 52
19 is already prime; no factorization.
1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160
2x2
No.
43 is already prime; no factorization required.
Prime Factorization: 2*5*31