The factors of 12 are:
1, 2, 3, 4, 6, 12
The factors of 84 are:
1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
The common factors are: 1, 2, 3, 4, 6, 12
84
84
The common factors are: 1, 2, 4.
3
The GCF is 6.
The highest common multiple is infinite, and not very practical. The GCF is 3. The LCM is 84.
84
The common factors of 28 and 84 are 1,2,4,7,14 and 28.
The common factors of 28 and 84 are 1,2,4,7,14 and 28
Common factors of 15 and 84 are: 1 and 3.
The least common factor of any set of positive integers is 1.
The common factors of 21 42 and 84 are 21