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The GCF of 840 and 255 is 15.
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Find HCF of: 1680 & 510 2520 & 765 280 & 85 4200 & 1275 168 & 51 5880 & 1785 1680 & 255 840 & 510 2520 & 255 840 & 765 4200 & 255 840 & 1275 5880 & 255 840 & 1785
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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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