What is the Greatest Common Factor of 12357 and 12361?

Greatest common factor (GCF) of 12357 and 12361 is 1.

GCF(12357,12361) = 1

We will now calculate the prime factors of 12357 and 12361, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 12357 and 12361.

How to find the GCF of 12357 and 12361?

We will first find the prime factorization of 12357 and 12361. After we will calculate the factors of 12357 and 12361 and find the biggest common factor number .

Step-1: Prime Factorization of 12357

Prime factors of 12357 are 3, 1373. Prime factorization of 12357 in exponential form is:

12357 = 3² × 1373¹

Step-2: Prime Factorization of 12361

Prime factors of 12361 are 47, 263. Prime factorization of 12361 in exponential form is:

12361 = 47¹ × 263¹

Step-3: Factors of 12357

List of positive integer factors of 12357 that divides 12357 without a remainder.

1, 3, 9, 1373, 4119

Step-4: Factors of 12361

List of positive integer factors of 12361 that divides 12357 without a remainder.

1, 47, 263

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 12357 and 12361. The biggest common factor number is the GCF number.
So the greatest common factor 12357 and 12361 is 1.

Also check out the Least Common Multiple of 12357 and 12361