Solutions by everydaycalculation.com
The GCF of 21 and 172 is 1.
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Find HCF of: 42 & 344 63 & 516 105 & 860 147 & 1204 42 & 172 21 & 344 63 & 172 21 & 516 105 & 172 21 & 860 147 & 172 21 & 1204
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The greatest common factor (GCF) is also known as greatest common divisor (GCD) or highest common factor (HCF).
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