What is the Greatest Common Factor of 28520 and 28540?

Greatest common factor (GCF) of 28520 and 28540 is 20.

GCF(28520,28540) = 20

We will now calculate the prime factors of 28520 and 28540, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28520 and 28540.

How to find the GCF of 28520 and 28540?

We will first find the prime factorization of 28520 and 28540. After we will calculate the factors of 28520 and 28540 and find the biggest common factor number .

Step-1: Prime Factorization of 28520

Prime factors of 28520 are 2, 5, 23, 31. Prime factorization of 28520 in exponential form is:

28520 = 2³ × 5¹ × 23¹ × 31¹

Step-2: 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-3: Factors of 28520

List of positive integer factors of 28520 that divides 28520 without a remainder.

1, 2, 4, 5, 8, 10, 20, 23, 31, 40, 46, 62, 92, 115, 124, 155, 184, 230, 248, 310, 460, 620, 713, 920, 1240, 1426, 2852, 3565, 5704, 7130, 14260

Step-4: Factors of 28540

List of positive integer factors of 28540 that divides 28520 without a remainder.

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

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28520 and 28540. The biggest common factor number is the GCF number.
So the greatest common factor 28520 and 28540 is 20.

Also check out the Least Common Multiple of 28520 and 28540