What is the Greatest Common Factor of 12287 and 12305?

Greatest common factor (GCF) of 12287 and 12305 is 1.

GCF(12287,12305) = 1

We will now calculate the prime factors of 12287 and 12305, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 12287 and 12305.

How to find the GCF of 12287 and 12305?

We will first find the prime factorization of 12287 and 12305. After we will calculate the factors of 12287 and 12305 and find the biggest common factor number .

Step-1: Prime Factorization of 12287

Prime factors of 12287 are 11, 1117. Prime factorization of 12287 in exponential form is:

12287 = 11¹ × 1117¹

Step-2: Prime Factorization of 12305

Prime factors of 12305 are 5, 23, 107. Prime factorization of 12305 in exponential form is:

12305 = 5¹ × 23¹ × 107¹

Step-3: Factors of 12287

List of positive integer factors of 12287 that divides 12287 without a remainder.

1, 11, 1117

Step-4: Factors of 12305

List of positive integer factors of 12305 that divides 12287 without a remainder.

1, 5, 23, 107, 115, 535, 2461

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 12287 and 12305. The biggest common factor number is the GCF number.
So the greatest common factor 12287 and 12305 is 1.

Also check out the Least Common Multiple of 12287 and 12305