The common factors of 51 and 39 are 1 and 3.
The factors of 39 are 1, 3, 13, and 39. Its prime factors are 3 x 13. The factors of 51 are 1, 3, 17, and 51. Its prime factors are 3 x 17.
The positive integer factors of 663 are: 1, 3, 13, 17, 39, 51, 221, 663
The factors of 1989 are: 1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989.
The GCF of 39 and 51 is 3.3
39
The greatest common factor of 51, 66, and 39 is 3. Work shown below 51 = 3 * 17 66 = 2 * 3 * 11 39 = 3 * 13
141
1, 3, 17, 51
1, 3, 17, 51
1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989 3, 13 and 17 are prime.
The factors of 1,326 are: 1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 78, 102, 221, 442, 663, 1326.