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The GCF of 21 and 394 is 1.
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Find HCF of: 42 & 788 63 & 1182 105 & 1970 147 & 2758 42 & 394 21 & 788 63 & 394 21 & 1182 105 & 394 21 & 1970 147 & 394 21 & 2758
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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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