The GCF is 21.
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No. 42 is a factor of both 168 and 210. The GCF is 42.
The GCF is 6.
The GCF of 140, 168 and 210 is 14.
The factors of 168 are:1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168The factors of 210 are:1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210The factors of 238 are:1, 2, 7, 14, 17, 34, 119, 238The common factors are:1, 2, 7, 14The Greatest Common Factor (GCF) is:14The GCF is 14.
42, 84, 126, 168, 210, 252, 294, 336, 378, 420, 462, 504, 546, . . .