What is the Greatest Common Factor of 25638 and 25642?

Greatest common factor (GCF) of 25638 and 25642 is 2.

GCF(25638,25642) = 2

We will now calculate the prime factors of 25638 and 25642, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 25638 and 25642.

How to find the GCF of 25638 and 25642?

We will first find the prime factorization of 25638 and 25642. After we will calculate the factors of 25638 and 25642 and find the biggest common factor number .

Step-1: Prime Factorization of 25638

Prime factors of 25638 are 2, 3, 4273. Prime factorization of 25638 in exponential form is:

25638 = 2¹ × 3¹ × 4273¹

Step-2: Prime Factorization of 25642

Prime factors of 25642 are 2, 12821. Prime factorization of 25642 in exponential form is:

25642 = 2¹ × 12821¹

Step-3: Factors of 25638

List of positive integer factors of 25638 that divides 25638 without a remainder.

1, 2, 3, 6, 4273, 8546, 12819

Step-4: Factors of 25642

List of positive integer factors of 25642 that divides 25638 without a remainder.

1, 2, 12821

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 25638 and 25642. The biggest common factor number is the GCF number.
So the greatest common factor 25638 and 25642 is 2.

Also check out the Least Common Multiple of 25638 and 25642