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The GCF of 21 and 655 is 1.
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Find HCF of: 42 & 1310 63 & 1965 105 & 3275 147 & 4585 42 & 655 21 & 1310 63 & 655 21 & 1965 105 & 655 21 & 3275 147 & 655 21 & 4585
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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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