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The GCF of 210 and 690 is 30.
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Find HCF of: 420 & 1380 105 & 345 630 & 2070 70 & 230 1050 & 3450 42 & 138 1470 & 4830 420 & 690 210 & 1380 630 & 690 210 & 2070 1050 & 690 210 & 3450 1470 & 690 210 & 4830
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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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