What is the Greatest Common Factor of 15345 and 15356?

Greatest common factor (GCF) of 15345 and 15356 is 11.

GCF(15345,15356) = 11

We will now calculate the prime factors of 15345 and 15356, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15345 and 15356.

How to find the GCF of 15345 and 15356?

We will first find the prime factorization of 15345 and 15356. After we will calculate the factors of 15345 and 15356 and find the biggest common factor number .

Step-1: Prime Factorization of 15345

Prime factors of 15345 are 3, 5, 11, 31. Prime factorization of 15345 in exponential form is:

15345 = 3² × 5¹ × 11¹ × 31¹

Step-2: Prime Factorization of 15356

Prime factors of 15356 are 2, 11, 349. Prime factorization of 15356 in exponential form is:

15356 = 2² × 11¹ × 349¹

Step-3: Factors of 15345

List of positive integer factors of 15345 that divides 15345 without a remainder.

1, 3, 5, 9, 11, 15, 31, 33, 45, 55, 93, 99, 155, 165, 279, 341, 465, 495, 1023, 1395, 1705, 3069, 5115

Step-4: Factors of 15356

List of positive integer factors of 15356 that divides 15345 without a remainder.

1, 2, 4, 11, 22, 44, 349, 698, 1396, 3839, 7678

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15345 and 15356. The biggest common factor number is the GCF number.
So the greatest common factor 15345 and 15356 is 11.

Also check out the Least Common Multiple of 15345 and 15356