What is the Greatest Common Factor of 6630 and 6639?

Greatest common factor (GCF) of 6630 and 6639 is 3.

GCF(6630,6639) = 3

We will now calculate the prime factors of 6630 and 6639, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 6630 and 6639.

How to find the GCF of 6630 and 6639?

We will first find the prime factorization of 6630 and 6639. After we will calculate the factors of 6630 and 6639 and find the biggest common factor number .

Step-1: Prime Factorization of 6630

Prime factors of 6630 are 2, 3, 5, 13, 17. Prime factorization of 6630 in exponential form is:

6630 = 2¹ × 3¹ × 5¹ × 13¹ × 17¹

Step-2: Prime Factorization of 6639

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

6639 = 3¹ × 2213¹

Step-3: Factors of 6630

List of positive integer factors of 6630 that divides 6630 without a remainder.

1, 2, 3, 5, 6, 10, 13, 15, 17, 26, 30, 34, 39, 51, 65, 78, 85, 102, 130, 170, 195, 221, 255, 390, 442, 510, 663, 1105, 1326, 2210, 3315

Step-4: Factors of 6639

List of positive integer factors of 6639 that divides 6630 without a remainder.

1, 3, 2213

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 6630 and 6639. The biggest common factor number is the GCF number.
So the greatest common factor 6630 and 6639 is 3.

Also check out the Least Common Multiple of 6630 and 6639