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The GCF of 21 and 630 is 21.
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Find HCF of: 42 & 1260 63 & 1890 7 & 210 105 & 3150 147 & 4410 3 & 90 42 & 630 21 & 1260 63 & 630 21 & 1890 105 & 630 21 & 3150 147 & 630 21 & 4410
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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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