The factors of 21 are: 1, 3, 7, 21.
The factors of 84 are: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84.
The common factors are: 1, 3, 7, 21
Chat with our AI personalities
Since 12 is a factor of 84, all of its factors are common.
The GCF of 132 and 198 is 66. The factors of 132 are 2x66=2x2x3x11, The factors of 198 are 198= 3x66=2x11x3x3 The GCF is 66.
The common factors are: 1, 7
The common factors are: 1, 2.
The GCF of 28 and 84 is 28.