What is the Greatest Common Factor of 27485 and 27489?

Greatest common factor (GCF) of 27485 and 27489 is 1.

GCF(27485,27489) = 1

We will now calculate the prime factors of 27485 and 27489, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 27485 and 27489.

How to find the GCF of 27485 and 27489?

We will first find the prime factorization of 27485 and 27489. After we will calculate the factors of 27485 and 27489 and find the biggest common factor number .

Step-1: Prime Factorization of 27485

Prime factors of 27485 are 5, 23, 239. Prime factorization of 27485 in exponential form is:

27485 = 5¹ × 23¹ × 239¹

Step-2: Prime Factorization of 27489

Prime factors of 27489 are 3, 7, 11, 17. Prime factorization of 27489 in exponential form is:

27489 = 3¹ × 7² × 11¹ × 17¹

Step-3: Factors of 27485

List of positive integer factors of 27485 that divides 27485 without a remainder.

1, 5, 23, 115, 239, 1195, 5497

Step-4: Factors of 27489

List of positive integer factors of 27489 that divides 27485 without a remainder.

1, 3, 7, 11, 17, 21, 33, 49, 51, 77, 119, 147, 187, 231, 357, 539, 561, 833, 1309, 1617, 2499, 3927, 9163

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 27485 and 27489. The biggest common factor number is the GCF number.
So the greatest common factor 27485 and 27489 is 1.

Also check out the Least Common Multiple of 27485 and 27489