What is the Greatest Common Factor of 6639 and 6647?

Greatest common factor (GCF) of 6639 and 6647 is 1.

GCF(6639,6647) = 1

We will now calculate the prime factors of 6639 and 6647, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 6639 and 6647.

How to find the GCF of 6639 and 6647?

We will first find the prime factorization of 6639 and 6647. After we will calculate the factors of 6639 and 6647 and find the biggest common factor number .

Step-1: Prime Factorization of 6639

Prime factors of 6639 are 3, 2213. Prime factorization of 6639 in exponential form is:

6639 = 3¹ × 2213¹

Step-2: Prime Factorization of 6647

Prime factors of 6647 are 17, 23. Prime factorization of 6647 in exponential form is:

6647 = 17² × 23¹

Step-3: Factors of 6639

List of positive integer factors of 6639 that divides 6639 without a remainder.

1, 3, 2213

Step-4: Factors of 6647

List of positive integer factors of 6647 that divides 6639 without a remainder.

1, 17, 23, 289, 391

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 6639 and 6647. The biggest common factor number is the GCF number.
So the greatest common factor 6639 and 6647 is 1.

Also check out the Least Common Multiple of 6639 and 6647