Method of prime factorization is a good method to find GCF.
P.F. of 68 = 2x2x17
P.F. of 56 = 2x2x2x7
It is clear that 2x2 is the greatest common factor.
Therefore, GCF of 68 and 56 = 4.
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The GCF is 4.
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 52, 76, and 80 is 4
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 44, 56, and 92 is 4
Since 4 is a factor of 76, it is automatically the GCF.
The GCF of 76 and 144 is 4.