What is the Greatest Common Factor of 25665 and 25681?

Greatest common factor (GCF) of 25665 and 25681 is 1.

GCF(25665,25681) = 1

We will now calculate the prime factors of 25665 and 25681, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 25665 and 25681.

How to find the GCF of 25665 and 25681?

We will first find the prime factorization of 25665 and 25681. After we will calculate the factors of 25665 and 25681 and find the biggest common factor number .

Step-1: Prime Factorization of 25665

Prime factors of 25665 are 3, 5, 29, 59. Prime factorization of 25665 in exponential form is:

25665 = 3¹ × 5¹ × 29¹ × 59¹

Step-2: Prime Factorization of 25681

Prime factors of 25681 are 61, 421. Prime factorization of 25681 in exponential form is:

25681 = 61¹ × 421¹

Step-3: Factors of 25665

List of positive integer factors of 25665 that divides 25665 without a remainder.

1, 3, 5, 15, 29, 59, 87, 145, 177, 295, 435, 885, 1711, 5133, 8555

Step-4: Factors of 25681

List of positive integer factors of 25681 that divides 25665 without a remainder.

1, 61, 421

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 25665 and 25681. The biggest common factor number is the GCF number.
So the greatest common factor 25665 and 25681 is 1.

Also check out the Least Common Multiple of 25665 and 25681