What is the Greatest Common Factor of 12355 and 12365?

Greatest common factor (GCF) of 12355 and 12365 is 5.

GCF(12355,12365) = 5

We will now calculate the prime factors of 12355 and 12365, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 12355 and 12365.

How to find the GCF of 12355 and 12365?

We will first find the prime factorization of 12355 and 12365. After we will calculate the factors of 12355 and 12365 and find the biggest common factor number .

Step-1: Prime Factorization of 12355

Prime factors of 12355 are 5, 7, 353. Prime factorization of 12355 in exponential form is:

12355 = 5¹ × 7¹ × 353¹

Step-2: Prime Factorization of 12365

Prime factors of 12365 are 5, 2473. Prime factorization of 12365 in exponential form is:

12365 = 5¹ × 2473¹

Step-3: Factors of 12355

List of positive integer factors of 12355 that divides 12355 without a remainder.

1, 5, 7, 35, 353, 1765, 2471

Step-4: Factors of 12365

List of positive integer factors of 12365 that divides 12355 without a remainder.

1, 5, 2473

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 12355 and 12365. The biggest common factor number is the GCF number.
So the greatest common factor 12355 and 12365 is 5.

Also check out the Least Common Multiple of 12355 and 12365