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The GCF of 21 and 459 is 3.
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Find HCF of: 42 & 918 63 & 1377 7 & 153 105 & 2295 147 & 3213 42 & 459 21 & 918 63 & 459 21 & 1377 105 & 459 21 & 2295 147 & 459 21 & 3213
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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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