What is the Greatest Common Factor of 6811 and 6821?

Greatest common factor (GCF) of 6811 and 6821 is 1.

GCF(6811,6821) = 1

We will now calculate the prime factors of 6811 and 6821, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 6811 and 6821.

How to find the GCF of 6811 and 6821?

We will first find the prime factorization of 6811 and 6821. After we will calculate the factors of 6811 and 6821 and find the biggest common factor number .

Step-1: Prime Factorization of 6811

Prime factors of 6811 are 7, 139. Prime factorization of 6811 in exponential form is:

6811 = 7² × 139¹

Step-2: Prime Factorization of 6821

Prime factors of 6821 are 19, 359. Prime factorization of 6821 in exponential form is:

6821 = 19¹ × 359¹

Step-3: Factors of 6811

List of positive integer factors of 6811 that divides 6811 without a remainder.

1, 7, 49, 139, 973

Step-4: Factors of 6821

List of positive integer factors of 6821 that divides 6811 without a remainder.

1, 19, 359

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 6811 and 6821. The biggest common factor number is the GCF number.
So the greatest common factor 6811 and 6821 is 1.

Also check out the Least Common Multiple of 6811 and 6821