Best Answer

If you mean the greatest common divisor (or factor), the answer is 6

Q: What is the GCD of 42 and 66?

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Related questions

The GCF is 6.

GCD(66, 90) = 6

GCD of 81 and 66 is 3.

The GCD of 14, 42 is 14.

GCD(42, 65) = 1

GCD: 14

GCD: 21

GCD: 14

The Greatest Common Divisor (GCD) for 42 56 is 14.

Greatest Common Divisor (GCD) for 30 42 is 6.

GCD: 6

The GCF is 3.