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The GCF of 21 and 400 is 1.
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Find HCF of: 42 & 800 63 & 1200 105 & 2000 147 & 2800 42 & 400 21 & 800 63 & 400 21 & 1200 105 & 400 21 & 2000 147 & 400 21 & 2800
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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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