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The GCF of 255 and 645 is 15.
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Find HCF of: 510 & 1290 765 & 1935 85 & 215 1275 & 3225 51 & 129 1785 & 4515 510 & 645 255 & 1290 765 & 645 255 & 1935 1275 & 645 255 & 3225 1785 & 645 255 & 4515
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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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