Solutions by everydaycalculation.com
The GCF of 21 and 217 is 7.
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Find HCF of: 42 & 434 63 & 651 105 & 1085 147 & 1519 3 & 31 42 & 217 21 & 434 63 & 217 21 & 651 105 & 217 21 & 1085 147 & 217 21 & 1519
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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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