What is the Greatest Common Factor of 77961 and 77974?

Greatest common factor (GCF) of 77961 and 77974 is 13.

GCF(77961,77974) = 13

We will now calculate the prime factors of 77961 and 77974, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 77961 and 77974.

How to find the GCF of 77961 and 77974?

We will first find the prime factorization of 77961 and 77974. After we will calculate the factors of 77961 and 77974 and find the biggest common factor number .

Step-1: Prime Factorization of 77961

Prime factors of 77961 are 3, 13, 1999. Prime factorization of 77961 in exponential form is:

77961 = 3¹ × 13¹ × 1999¹

Step-2: Prime Factorization of 77974

Prime factors of 77974 are 2, 13, 2999. Prime factorization of 77974 in exponential form is:

77974 = 2¹ × 13¹ × 2999¹

Step-3: Factors of 77961

List of positive integer factors of 77961 that divides 77961 without a remainder.

1, 3, 13, 39, 1999, 5997, 25987

Step-4: Factors of 77974

List of positive integer factors of 77974 that divides 77961 without a remainder.

1, 2, 13, 26, 2999, 5998, 38987

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 77961 and 77974. The biggest common factor number is the GCF number.
So the greatest common factor 77961 and 77974 is 13.

Also check out the Least Common Multiple of 77961 and 77974