13, 17, and 19
13 is a prime number. It is only evenly divisible by itself and one.The prime factors of 475 are: 5 and 19.
The factors of 10 are: 1, 2, 5, 10 The factors of 11 are: 1, 11 The factors of 12 are: 1, 2, 3, 4, 6, 12 The factors of 13 are: 1, 13 The factors of 15 are: 1, 3, 5, 15 The factors of 16 are: 1, 2, 4, 8, 16 The factors of 17 are: 1, 17 The factors of 18 are: 1, 2, 3, 6, 9, 18 The factors of 19 are: 1, 19 The factors of 20 are: 1, 2, 4, 5, 10, 20
1, 13, 19, 29, 247, 377, 551, 7163
13 and 19 aren't composite. 1,2,5,10 1,13 1,2,3,6,9,18 1,19
13 and 19 share no common factors aside from 1.
The prime factors of 494 are 2, 13, and 19. The prime factors of 741 are 3, 13, and 19. The common factors are 13 and 19, so the greatest common factor is 13 x 19 = 247.
1 and 13 1 and 19
factors: 1, 11, 13, 19, 143, 209, 247, 2717prime factors: 11, 13, 19
1, 7, 13, 19, 91, 133, 247, 1729 The prime factors are 7, 13, 19
The factors are: 1, 3, 13, 19, 39, 57, 247, 741 The prime factorisation is 3 x 13 x 19
The factors of 247 are 1, 13, 19, and 247
The factors of 95 are: 1, 5, 19, 95 The factors of 247 are: 1, 13, 19, 247
The positive integer factors of 2223 are: 1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223 The prime factors of 2223 are: 3, 13, 19 The prime factorization of 2223 is: 32 x 13 x 19
1, 13, 19, and 247.
The factors of 494 are: 1 2 13 19 26 38 247 494
The positive integer factors of 988 are: 1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988 The prime factors of 988 are: 22 x 13 x 19