What is the Greatest Common Factor of 25821 and 25838?

Greatest common factor (GCF) of 25821 and 25838 is 1.

GCF(25821,25838) = 1

We will now calculate the prime factors of 25821 and 25838, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 25821 and 25838.

How to find the GCF of 25821 and 25838?

We will first find the prime factorization of 25821 and 25838. After we will calculate the factors of 25821 and 25838 and find the biggest common factor number .

Step-1: Prime Factorization of 25821

Prime factors of 25821 are 3, 19, 151. Prime factorization of 25821 in exponential form is:

25821 = 3² × 19¹ × 151¹

Step-2: Prime Factorization of 25838

Prime factors of 25838 are 2, 12919. Prime factorization of 25838 in exponential form is:

25838 = 2¹ × 12919¹

Step-3: Factors of 25821

List of positive integer factors of 25821 that divides 25821 without a remainder.

1, 3, 9, 19, 57, 151, 171, 453, 1359, 2869, 8607

Step-4: Factors of 25838

List of positive integer factors of 25838 that divides 25821 without a remainder.

1, 2, 12919

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 25821 and 25838. The biggest common factor number is the GCF number.
So the greatest common factor 25821 and 25838 is 1.

Also check out the Least Common Multiple of 25821 and 25838