The common factors of 18, 30, and 42 are: 1, 2, 3, and 6
The Greatest Common Factor (GCF) is: 6
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The common factors are: 1, 2, 3, 6
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The factors that they share. Example: 30 and 42 1,2,3,5,6,10,15,30 1,2,3,6,7,14,21,42 1,2,3 and 6 are the common factors, the factors in common.
The factors of 18 are 1, 2, 3, 6, 9, and 18. The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42. The common factors of 18 and 24 are 1, 2, 3, and 6, and the GCF is 6.
The common factors of 42 and 273 are 1, 3, 7 and 21.