What is the Greatest Common Factor of 6981 and 6985?

Greatest common factor (GCF) of 6981 and 6985 is 1.

GCF(6981,6985) = 1

We will now calculate the prime factors of 6981 and 6985, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 6981 and 6985.

How to find the GCF of 6981 and 6985?

We will first find the prime factorization of 6981 and 6985. After we will calculate the factors of 6981 and 6985 and find the biggest common factor number .

Step-1: Prime Factorization of 6981

Prime factors of 6981 are 3, 13, 179. Prime factorization of 6981 in exponential form is:

6981 = 3¹ × 13¹ × 179¹

Step-2: 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-3: Factors of 6981

List of positive integer factors of 6981 that divides 6981 without a remainder.

1, 3, 13, 39, 179, 537, 2327

Step-4: Factors of 6985

List of positive integer factors of 6985 that divides 6981 without a remainder.

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

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 6981 and 6985. The biggest common factor number is the GCF number.
So the greatest common factor 6981 and 6985 is 1.

Also check out the Least Common Multiple of 6981 and 6985