19 is already prime; no factorization.
2x2
No.
43 is already prime; no factorization required.
Prime Factorization: 2*5*31
None. 103 is a prime number.103 is already prime. No factorization.
Since 103 is a prime number, the prime factorization of 103 is simply 103.
103 is already prime, no need for a factorization.
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.
It is: 2*29 = 58
67 is a prime number
115 = 5 × 23