What is the Greatest Common Factor of 85971 and 85975?

Greatest common factor (GCF) of 85971 and 85975 is 1.

GCF(85971,85975) = 1

We will now calculate the prime factors of 85971 and 85975, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 85971 and 85975.

How to find the GCF of 85971 and 85975?

We will first find the prime factorization of 85971 and 85975. After we will calculate the factors of 85971 and 85975 and find the biggest common factor number .

Step-1: Prime Factorization of 85971

Prime factors of 85971 are 3, 28657. Prime factorization of 85971 in exponential form is:

85971 = 3¹ × 28657¹

Step-2: Prime Factorization of 85975

Prime factors of 85975 are 5, 19, 181. Prime factorization of 85975 in exponential form is:

85975 = 5² × 19¹ × 181¹

Step-3: Factors of 85971

List of positive integer factors of 85971 that divides 85971 without a remainder.

1, 3, 28657

Step-4: Factors of 85975

List of positive integer factors of 85975 that divides 85971 without a remainder.

1, 5, 19, 25, 95, 181, 475, 905, 3439, 4525, 17195

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 85971 and 85975. The biggest common factor number is the GCF number.
So the greatest common factor 85971 and 85975 is 1.

Also check out the Least Common Multiple of 85971 and 85975