It's a prime factor.
prime factorization of 165 = 3 x 5 x 11
factorization of 165 is =3*5*11
165 = 3 * 5 * 11
13 is a prime, so its prime factorization is: 13
165 = 3*5*11
165 = 3 * 5 * 11
2 x 5 x 13 = 130 3 x 5 x 11 = 165 The common prime factor is 5.
3 x 5 x 11 = 165
165 = 3 x 5 x 11
165 = 3 x 5 x 11
165 55,3 11,5,3
3 x 5 x 11 = 165