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The GCF of 21 and 990 is 3.
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Find HCF of: 42 & 1980 63 & 2970 7 & 330 105 & 4950 147 & 6930 42 & 990 21 & 1980 63 & 990 21 & 2970 105 & 990 21 & 4950 147 & 990 21 & 6930
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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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