2
72 = 2 × 2 × 2 × 3 × 3 120 = 2 × 2 × 2 × 3 × 5 600 = 2 × 2 × 2 × 3 × 5 × 5
Prime factorizations are expressions of numbers as products of prime factors. The prime factorization of 30 is 2 x 3 x 5.
The prime factorization of 72 is 2 x 2 x 2 x 3 x 3 The prime factors of 72 are 2 and 3. Prime factorizations may contain repeated factors. When you list the factors, you only need to list them once.
2 is already prime; no factorization.
2
2*2*2*3*3*5
72 = 2 × 2 × 2 × 3 × 3 120 = 2 × 2 × 2 × 3 × 5 600 = 2 × 2 × 2 × 3 × 5 × 5
72
Negative numbers don't have prime factorizations.
5 c
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
2^3 x 3^2 = 72 2^3 x 3 x 5 = 120 2^3 x 3 x 5^2 = 600
49 = 7 x 7 or 72
For 60, it is 23x3x5. For 120, it is 24x3x5. For 160, it is 26x5. For 300, it is 22x3x52.
72 = 2*2*2*3*3 108 = 2*2*3*3*3