What is the Greatest Common Factor of 28581 and 28590?

Greatest common factor (GCF) of 28581 and 28590 is 3.

GCF(28581,28590) = 3

We will now calculate the prime factors of 28581 and 28590, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28581 and 28590.

How to find the GCF of 28581 and 28590?

We will first find the prime factorization of 28581 and 28590. After we will calculate the factors of 28581 and 28590 and find the biggest common factor number .

Step-1: Prime Factorization of 28581

Prime factors of 28581 are 3, 7, 1361. Prime factorization of 28581 in exponential form is:

28581 = 3¹ × 7¹ × 1361¹

Step-2: Prime Factorization of 28590

Prime factors of 28590 are 2, 3, 5, 953. Prime factorization of 28590 in exponential form is:

28590 = 2¹ × 3¹ × 5¹ × 953¹

Step-3: Factors of 28581

List of positive integer factors of 28581 that divides 28581 without a remainder.

1, 3, 7, 21, 1361, 4083, 9527

Step-4: Factors of 28590

List of positive integer factors of 28590 that divides 28581 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 953, 1906, 2859, 4765, 5718, 9530, 14295

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28581 and 28590. The biggest common factor number is the GCF number.
So the greatest common factor 28581 and 28590 is 3.

Also check out the Least Common Multiple of 28581 and 28590