They are 1, 2, 3, 6, 7 and 21.
The common factors of 6, 21, and 39 are 1 and 3
The common factors of 6 and 21 are 1 and 3.
The factors of 6 are 1, 2, 3, and 6. The factors of 21 are 1, 3, 7, and 21. The common factors of 6 and 21 are 1 and 3, and the GCF is 3.
21 has four factors: 1, 3, 7 and 21.
The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42.
The factors of 21 are: 1, 3, 7, 21.The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42.The common factors are: 1, 3, 7, 21
2, 3, 6, 7, 14, 21
The factors for 42 are 1,2,3,6,7,14,21,42.
1, 2, 3, 6, 7, 14, 21 and 42
They are: 1 2 3 6 7 14 21 42.
1, 2, 3, 6, 7, 14, 21, 42.
6 factors into [2 3] 21 factors into [3 7] Common factor is [3]◄