Solutions by everydaycalculation.com
The GCF of 21 and 219 is 3.
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Find HCF of: 42 & 438 63 & 657 7 & 73 105 & 1095 147 & 1533 42 & 219 21 & 438 63 & 219 21 & 657 105 & 219 21 & 1095 147 & 219 21 & 1533
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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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