19 is already prime; no factorization.
414 = 2 * 3 * 3 * 23
2x2
No.
43 is already prime; no factorization required.
Prime Factorization: 2*5*31
414 207,2 69,3,2 23,3,3,2
414 207,2 69,3,2 23,3,3,2
414 = 2 x 3 x 3 x 23
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