What is the Greatest Common Factor of 25556 and 25570?

Greatest common factor (GCF) of 25556 and 25570 is 2.

GCF(25556,25570) = 2

We will now calculate the prime factors of 25556 and 25570, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 25556 and 25570.

How to find the GCF of 25556 and 25570?

We will first find the prime factorization of 25556 and 25570. After we will calculate the factors of 25556 and 25570 and find the biggest common factor number .

Step-1: Prime Factorization of 25556

Prime factors of 25556 are 2, 6389. Prime factorization of 25556 in exponential form is:

25556 = 2² × 6389¹

Step-2: 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-3: Factors of 25556

List of positive integer factors of 25556 that divides 25556 without a remainder.

1, 2, 4, 6389, 12778

Step-4: Factors of 25570

List of positive integer factors of 25570 that divides 25556 without a remainder.

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

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 25556 and 25570. The biggest common factor number is the GCF number.
So the greatest common factor 25556 and 25570 is 2.

Also check out the Least Common Multiple of 25556 and 25570