2 x 2 x 2 x 2 x 5 x 5
19 is already prime; no factorization.
2 and 29
2 x 5 = 10
3 * 5 * 7 * 11 = 1,155
2 x 2 x 11 = 44
105 = 3 x 5 x 7
2 x 3 x 7 = 42
Prime factorization is expressing a number as the product of its prime factors. 2 x 3 x 5 x 7 = 210
No, 6 is not prime. 2 x 2 x 3 x 5 = 60
400 = 2^4 × 5^2
152 = 23 × 19
24 x 52 = 400