What is the Greatest Common Factor of 65991 and 65997?

Greatest common factor (GCF) of 65991 and 65997 is 3.

GCF(65991,65997) = 3

We will now calculate the prime factors of 65991 and 65997, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 65991 and 65997.

How to find the GCF of 65991 and 65997?

We will first find the prime factorization of 65991 and 65997. After we will calculate the factors of 65991 and 65997 and find the biggest common factor number .

Step-1: Prime Factorization of 65991

Prime factors of 65991 are 3, 21997. Prime factorization of 65991 in exponential form is:

65991 = 3¹ × 21997¹

Step-2: Prime Factorization of 65997

Prime factors of 65997 are 3, 7333. Prime factorization of 65997 in exponential form is:

65997 = 3² × 7333¹

Step-3: Factors of 65991

List of positive integer factors of 65991 that divides 65991 without a remainder.

1, 3, 21997

Step-4: Factors of 65997

List of positive integer factors of 65997 that divides 65991 without a remainder.

1, 3, 9, 7333, 21999

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 65991 and 65997. The biggest common factor number is the GCF number.
So the greatest common factor 65991 and 65997 is 3.

Also check out the Least Common Multiple of 65991 and 65997