144 = 24 × 32
Since 72 is a factor of 144, its entire prime factorization will be contained in the prime factorization of 144.
115 = 5 × 23
140 = 22 × 5 × 7
12
18 = 2 x 3 x 3
19 is already prime; no factorization.
2x2
No.
Prime Factorization: 2*5*31
43 is already prime; no factorization required.
Since 72 is a factor of 144, its entire prime factorization will be contained in the prime factorization of 144.
Since 72 is a factor of 144, its whole prime factorization will be contained in the prime factorization of 144.
No it isn't. 235/5 = 47 and 47 is a prim number. 235 isn't a prime number so it isn't a prim factorization. The real factorization is 47 * 5.
115 = 5 × 23
2 x 3
12 = 22 × 3
It is: 2, 3 and 7