13 is already prime. No factorization necessary.
You don't. 13 is a prime number.
The prime factorization of 91 is: 7 x 13
13 is already prime. Just write it down.
2 x 13
13 is a prime, so its prime factorization is: 13
13 x 13 = 169 The prime factor of 169 is 13. 13 is the square root of 169.
13 is already prime, no factorization required.
13 is already prime. No factorization.
The prime factorization of 728 is: 2 x 2 x 2 x 7 x 13
13 is already prime and doesn't need a prime factorization.
The prime factorization of 9,295 is: 5 × 11 × 13 × 13
7 and 13 are already prime, no factorization required.