Greatest common factor for 102 and 357 is 51.
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The GCF is 51.
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 102 and 357 is 51
The GCF is 21.
The GCF/HCF of 182 and 273 is 91.
GCF of 253 is 253.There cannot be a greatest common factor of just one number. To be common there need to be at least two numbers. If you find all the factors of two or more numbers, and you find some factors are the same ("common"), then the largest of those common factors is the Greatest Common Factor.