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The GCF of 21 and 1664 is 1.
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Find HCF of: 42 & 3328 63 & 4992 105 & 8320 42 & 1664 21 & 3328 63 & 1664 21 & 4992 105 & 1664 21 & 8320 147 & 1664
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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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