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The GCF of 21 and 570 is 3.
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Find HCF of: 42 & 1140 63 & 1710 7 & 190 105 & 2850 147 & 3990 42 & 570 21 & 1140 63 & 570 21 & 1710 105 & 570 21 & 2850 147 & 570 21 & 3990
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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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