What is the Greatest Common Factor of 6570 and 6585?

Greatest common factor (GCF) of 6570 and 6585 is 15.

GCF(6570,6585) = 15

We will now calculate the prime factors of 6570 and 6585, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 6570 and 6585.

How to find the GCF of 6570 and 6585?

We will first find the prime factorization of 6570 and 6585. After we will calculate the factors of 6570 and 6585 and find the biggest common factor number .

Step-1: Prime Factorization of 6570

Prime factors of 6570 are 2, 3, 5, 73. Prime factorization of 6570 in exponential form is:

6570 = 2¹ × 3² × 5¹ × 73¹

Step-2: Prime Factorization of 6585

Prime factors of 6585 are 3, 5, 439. Prime factorization of 6585 in exponential form is:

6585 = 3¹ × 5¹ × 439¹

Step-3: Factors of 6570

List of positive integer factors of 6570 that divides 6570 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 73, 90, 146, 219, 365, 438, 657, 730, 1095, 1314, 2190, 3285

Step-4: Factors of 6585

List of positive integer factors of 6585 that divides 6570 without a remainder.

1, 3, 5, 15, 439, 1317, 2195

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 6570 and 6585. The biggest common factor number is the GCF number.
So the greatest common factor 6570 and 6585 is 15.

Also check out the Least Common Multiple of 6570 and 6585