49 = 7 x 7 or 72
72
5 c
Negative numbers don't have prime factorizations.
2 and 6 are prime factors of 72 2 times 6 times 6 = 72
there is no prime factorization of 72 except for 1 and 72
2
72 = 2*2*2*3*3 108 = 2*2*3*3*3
12 x 6 = 72, so their prime factorizations are the same. Prime Factorization of : 12 x 6 and 72 = (2 * 2 * 3) (2 * 3) = 2 * 2 * 2 * 3 * 3
Some prime factorizations have repeated factors. The prime factorization of 72 is 2 x 2 x 2 x 3 x 3. The distinct prime factors of 72 are 2 and 3.
10 = 2 × 5
2*2*2*3*3*5