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The GCF of 21 and 100 is 1.
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Find HCF of: 42 & 200 63 & 300 105 & 500 147 & 700 42 & 100 21 & 200 63 & 100 21 & 300 105 & 100 21 & 500 147 & 100 21 & 700
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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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