What is the Greatest Common Factor of 28540 and 28555?

Greatest common factor (GCF) of 28540 and 28555 is 5.

GCF(28540,28555) = 5

We will now calculate the prime factors of 28540 and 28555, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28540 and 28555.

How to find the GCF of 28540 and 28555?

We will first find the prime factorization of 28540 and 28555. After we will calculate the factors of 28540 and 28555 and find the biggest common factor number .

Step-1: Prime Factorization of 28540

Prime factors of 28540 are 2, 5, 1427. Prime factorization of 28540 in exponential form is:

28540 = 2² × 5¹ × 1427¹

Step-2: Prime Factorization of 28555

Prime factors of 28555 are 5, 5711. Prime factorization of 28555 in exponential form is:

28555 = 5¹ × 5711¹

Step-3: Factors of 28540

List of positive integer factors of 28540 that divides 28540 without a remainder.

1, 2, 4, 5, 10, 20, 1427, 2854, 5708, 7135, 14270

Step-4: Factors of 28555

List of positive integer factors of 28555 that divides 28540 without a remainder.

1, 5, 5711

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28540 and 28555. The biggest common factor number is the GCF number.
So the greatest common factor 28540 and 28555 is 5.

Also check out the Least Common Multiple of 28540 and 28555