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The factors of 84 are:
1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
The factors of 105 are:
1, 3, 5, 7, 15, 21, 35, 105
The common factors are:
1, 3, 7, 21
The Greatest Common Factor (GCF) is:
21
The Greatest Common Factor is 21
The GCF is 21.
The GCF of 84, 105, 142, and 148 is 1.
The greatest common factor of 63, 84, and 105 is 21.