What is the Greatest Common Factor of 18605 and 18609?

Greatest common factor (GCF) of 18605 and 18609 is 1.

GCF(18605,18609) = 1

We will now calculate the prime factors of 18605 and 18609, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18605 and 18609.

How to find the GCF of 18605 and 18609?

We will first find the prime factorization of 18605 and 18609. After we will calculate the factors of 18605 and 18609 and find the biggest common factor number .

Step-1: Prime Factorization of 18605

Prime factors of 18605 are 5, 61. Prime factorization of 18605 in exponential form is:

18605 = 5¹ × 61²

Step-2: Prime Factorization of 18609

Prime factors of 18609 are 3, 6203. Prime factorization of 18609 in exponential form is:

18609 = 3¹ × 6203¹

Step-3: Factors of 18605

List of positive integer factors of 18605 that divides 18605 without a remainder.

1, 5, 61, 305, 3721

Step-4: Factors of 18609

List of positive integer factors of 18609 that divides 18605 without a remainder.

1, 3, 6203

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18605 and 18609. The biggest common factor number is the GCF number.
So the greatest common factor 18605 and 18609 is 1.

Also check out the Least Common Multiple of 18605 and 18609