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The GCF of 21 and 86 is 1.
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Find HCF of: 42 & 172 63 & 258 105 & 430 147 & 602 42 & 86 21 & 172 63 & 86 21 & 258 105 & 86 21 & 430 147 & 86 21 & 602
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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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