Solutions by everydaycalculation.com
The GCF of 21 and 546 is 21.
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Find HCF of: 42 & 1092 63 & 1638 7 & 182 105 & 2730 147 & 3822 3 & 78 42 & 546 21 & 1092 63 & 546 21 & 1638 105 & 546 21 & 2730 147 & 546 21 & 3822
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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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