What is the Greatest Common Factor of 78971 and 78975?

Greatest common factor (GCF) of 78971 and 78975 is 1.

GCF(78971,78975) = 1

We will now calculate the prime factors of 78971 and 78975, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78971 and 78975.

How to find the GCF of 78971 and 78975?

We will first find the prime factorization of 78971 and 78975. After we will calculate the factors of 78971 and 78975 and find the biggest common factor number .

Step-1: Prime Factorization of 78971

Prime factors of 78971 are 157, 503. Prime factorization of 78971 in exponential form is:

78971 = 157¹ × 503¹

Step-2: Prime Factorization of 78975

Prime factors of 78975 are 3, 5, 13. Prime factorization of 78975 in exponential form is:

78975 = 3⁵ × 5² × 13¹

Step-3: Factors of 78971

List of positive integer factors of 78971 that divides 78971 without a remainder.

1, 157, 503

Step-4: Factors of 78975

List of positive integer factors of 78975 that divides 78971 without a remainder.

1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 81, 117, 135, 195, 225, 243, 325, 351, 405, 585, 675, 975, 1053, 1215, 1755, 2025, 2925, 3159, 5265, 6075, 8775, 15795, 26325

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78971 and 78975. The biggest common factor number is the GCF number.
So the greatest common factor 78971 and 78975 is 1.

Also check out the Least Common Multiple of 78971 and 78975