What is the Greatest Common Factor of 7581 and 7587?

Greatest common factor (GCF) of 7581 and 7587 is 3.

GCF(7581,7587) = 3

We will now calculate the prime factors of 7581 and 7587, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7581 and 7587.

How to find the GCF of 7581 and 7587?

We will first find the prime factorization of 7581 and 7587. After we will calculate the factors of 7581 and 7587 and find the biggest common factor number .

Step-1: Prime Factorization of 7581

Prime factors of 7581 are 3, 7, 19. Prime factorization of 7581 in exponential form is:

7581 = 3¹ × 7¹ × 19²

Step-2: Prime Factorization of 7587

Prime factors of 7587 are 3, 281. Prime factorization of 7587 in exponential form is:

7587 = 3³ × 281¹

Step-3: Factors of 7581

List of positive integer factors of 7581 that divides 7581 without a remainder.

1, 3, 7, 19, 21, 57, 133, 361, 399, 1083, 2527

Step-4: Factors of 7587

List of positive integer factors of 7587 that divides 7581 without a remainder.

1, 3, 9, 27, 281, 843, 2529

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7581 and 7587. The biggest common factor number is the GCF number.
So the greatest common factor 7581 and 7587 is 3.

Also check out the Least Common Multiple of 7581 and 7587