What is the Greatest Common Factor of 25485 and 25489?

Greatest common factor (GCF) of 25485 and 25489 is 1.

GCF(25485,25489) = 1

We will now calculate the prime factors of 25485 and 25489, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 25485 and 25489.

How to find the GCF of 25485 and 25489?

We will first find the prime factorization of 25485 and 25489. After we will calculate the factors of 25485 and 25489 and find the biggest common factor number .

Step-1: Prime Factorization of 25485

Prime factors of 25485 are 3, 5, 1699. Prime factorization of 25485 in exponential form is:

25485 = 3¹ × 5¹ × 1699¹

Step-2: Prime Factorization of 25489

Prime factors of 25489 are 71, 359. Prime factorization of 25489 in exponential form is:

25489 = 71¹ × 359¹

Step-3: Factors of 25485

List of positive integer factors of 25485 that divides 25485 without a remainder.

1, 3, 5, 15, 1699, 5097, 8495

Step-4: Factors of 25489

List of positive integer factors of 25489 that divides 25485 without a remainder.

1, 71, 359

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 25485 and 25489. The biggest common factor number is the GCF number.
So the greatest common factor 25485 and 25489 is 1.

Also check out the Least Common Multiple of 25485 and 25489