What is the Greatest Common Factor of 28425 and 28443?

Greatest common factor (GCF) of 28425 and 28443 is 3.

GCF(28425,28443) = 3

We will now calculate the prime factors of 28425 and 28443, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28425 and 28443.

How to find the GCF of 28425 and 28443?

We will first find the prime factorization of 28425 and 28443. After we will calculate the factors of 28425 and 28443 and find the biggest common factor number .

Step-1: Prime Factorization of 28425

Prime factors of 28425 are 3, 5, 379. Prime factorization of 28425 in exponential form is:

28425 = 3¹ × 5² × 379¹

Step-2: Prime Factorization of 28443

Prime factors of 28443 are 3, 19, 499. Prime factorization of 28443 in exponential form is:

28443 = 3¹ × 19¹ × 499¹

Step-3: Factors of 28425

List of positive integer factors of 28425 that divides 28425 without a remainder.

1, 3, 5, 15, 25, 75, 379, 1137, 1895, 5685, 9475

Step-4: Factors of 28443

List of positive integer factors of 28443 that divides 28425 without a remainder.

1, 3, 19, 57, 499, 1497, 9481

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28425 and 28443. The biggest common factor number is the GCF number.
So the greatest common factor 28425 and 28443 is 3.

Also check out the Least Common Multiple of 28425 and 28443