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The GCF of 21 and 121 is 1.
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Find HCF of: 42 & 242 63 & 363 105 & 605 147 & 847 42 & 121 21 & 242 63 & 121 21 & 363 105 & 121 21 & 605 147 & 121 21 & 847
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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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