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Earn +20 ptsQ: What number is a common factor of 21 and 42?
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What are the common factor of 42 and 63?
A factor is a divisor - a number that will evenly divide into another number. One way to determine the common factors and greatest common factor is to find all the factors of the numbers and compare them. The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42. The factors of 63 are 1, 3, 7, 9, 21, and 63. The common factors are 1, 3, 7, and 21.
What is the greatest common factor of 4942 and 21?
7 is the greatest common factor of 4942 and 21, or of 49, 42 and 21, if that is what you meant.
What is the largest factor 21 and 42 both have in common?
The GCF is 21.
What is the greatest common factor for 42 and 105?
21
What is the greatest common factor of 10 21 and 42?
The GCF (greatest common factor) would be 21.
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