The lowest common factor is: 1
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0.7
Greatest common factor of 420 and 504 is 84.
The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these different terms all refer to the same thing: the largest integer which evenly divides two or more numbers.The greatest common factor of 204 and 280 is 4
2
the first three common multiples of 7, 20, and 35 are 140, 280, and 420