What is the Greatest Common Factor of 18209 and 18215?

Greatest common factor (GCF) of 18209 and 18215 is 1.

GCF(18209,18215) = 1

We will now calculate the prime factors of 18209 and 18215, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18209 and 18215.

How to find the GCF of 18209 and 18215?

We will first find the prime factorization of 18209 and 18215. After we will calculate the factors of 18209 and 18215 and find the biggest common factor number .

Step-1: Prime Factorization of 18209

Prime factors of 18209 are 131, 139. Prime factorization of 18209 in exponential form is:

18209 = 131¹ × 139¹

Step-2: Prime Factorization of 18215

Prime factors of 18215 are 5, 3643. Prime factorization of 18215 in exponential form is:

18215 = 5¹ × 3643¹

Step-3: Factors of 18209

List of positive integer factors of 18209 that divides 18209 without a remainder.

1, 131, 139

Step-4: Factors of 18215

List of positive integer factors of 18215 that divides 18209 without a remainder.

1, 5, 3643

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18209 and 18215. The biggest common factor number is the GCF number.
So the greatest common factor 18209 and 18215 is 1.

Also check out the Least Common Multiple of 18209 and 18215