What is the Greatest Common Factor of 25570 and 25580?

Greatest common factor (GCF) of 25570 and 25580 is 10.

GCF(25570,25580) = 10

We will now calculate the prime factors of 25570 and 25580, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 25570 and 25580.

How to find the GCF of 25570 and 25580?

We will first find the prime factorization of 25570 and 25580. After we will calculate the factors of 25570 and 25580 and find the biggest common factor number .

Step-1: Prime Factorization of 25570

Prime factors of 25570 are 2, 5, 2557. Prime factorization of 25570 in exponential form is:

25570 = 2¹ × 5¹ × 2557¹

Step-2: Prime Factorization of 25580

Prime factors of 25580 are 2, 5, 1279. Prime factorization of 25580 in exponential form is:

25580 = 2² × 5¹ × 1279¹

Step-3: Factors of 25570

List of positive integer factors of 25570 that divides 25570 without a remainder.

1, 2, 5, 10, 2557, 5114, 12785

Step-4: Factors of 25580

List of positive integer factors of 25580 that divides 25570 without a remainder.

1, 2, 4, 5, 10, 20, 1279, 2558, 5116, 6395, 12790

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 25570 and 25580. The biggest common factor number is the GCF number.
So the greatest common factor 25570 and 25580 is 10.

Also check out the Least Common Multiple of 25570 and 25580