What is the Greatest Common Factor of 6985 and 6991?

Greatest common factor (GCF) of 6985 and 6991 is 1.

GCF(6985,6991) = 1

We will now calculate the prime factors of 6985 and 6991, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 6985 and 6991.

How to find the GCF of 6985 and 6991?

We will first find the prime factorization of 6985 and 6991. After we will calculate the factors of 6985 and 6991 and find the biggest common factor number .

Step-1: Prime Factorization of 6985

Prime factors of 6985 are 5, 11, 127. Prime factorization of 6985 in exponential form is:

6985 = 5¹ × 11¹ × 127¹

Step-2: Prime Factorization of 6991

Prime factors of 6991 are 6991. Prime factorization of 6991 in exponential form is:

6991 = 6991¹

Step-3: Factors of 6985

List of positive integer factors of 6985 that divides 6985 without a remainder.

1, 5, 11, 55, 127, 635, 1397

Step-4: Factors of 6991

List of positive integer factors of 6991 that divides 6985 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 6985 and 6991. The biggest common factor number is the GCF number.
So the greatest common factor 6985 and 6991 is 1.

Also check out the Least Common Multiple of 6985 and 6991