What is the Greatest Common Factor of 86991 and 86997?

Greatest common factor (GCF) of 86991 and 86997 is 3.

GCF(86991,86997) = 3

We will now calculate the prime factors of 86991 and 86997, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 86991 and 86997.

How to find the GCF of 86991 and 86997?

We will first find the prime factorization of 86991 and 86997. After we will calculate the factors of 86991 and 86997 and find the biggest common factor number .

Step-1: 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-2: Prime Factorization of 86997

Prime factors of 86997 are 3, 47, 617. Prime factorization of 86997 in exponential form is:

86997 = 3¹ × 47¹ × 617¹

Step-3: Factors of 86991

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

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

Step-4: Factors of 86997

List of positive integer factors of 86997 that divides 86991 without a remainder.

1, 3, 47, 141, 617, 1851, 28999

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 86991 and 86997. The biggest common factor number is the GCF number.
So the greatest common factor 86991 and 86997 is 3.

Also check out the Least Common Multiple of 86991 and 86997