What is the Greatest Common Factor of 86972 and 86991?

Greatest common factor (GCF) of 86972 and 86991 is 1.

GCF(86972,86991) = 1

We will now calculate the prime factors of 86972 and 86991, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 86972 and 86991.

How to find the GCF of 86972 and 86991?

We will first find the prime factorization of 86972 and 86991. After we will calculate the factors of 86972 and 86991 and find the biggest common factor number .

Step-1: Prime Factorization of 86972

Prime factors of 86972 are 2, 17, 1279. Prime factorization of 86972 in exponential form is:

86972 = 2² × 17¹ × 1279¹

Step-2: Prime Factorization of 86991

Prime factors of 86991 are 3, 107, 271. Prime factorization of 86991 in exponential form is:

86991 = 3¹ × 107¹ × 271¹

Step-3: Factors of 86972

List of positive integer factors of 86972 that divides 86972 without a remainder.

1, 2, 4, 17, 34, 68, 1279, 2558, 5116, 21743, 43486

Step-4: Factors of 86991

List of positive integer factors of 86991 that divides 86972 without a remainder.

1, 3, 107, 271, 321, 813, 28997

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 86972 and 86991. The biggest common factor number is the GCF number.
So the greatest common factor 86972 and 86991 is 1.

Also check out the Least Common Multiple of 86972 and 86991