What is the Greatest Common Factor of 13203 and 13215?

Greatest common factor (GCF) of 13203 and 13215 is 3.

GCF(13203,13215) = 3

We will now calculate the prime factors of 13203 and 13215, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 13203 and 13215.

How to find the GCF of 13203 and 13215?

We will first find the prime factorization of 13203 and 13215. After we will calculate the factors of 13203 and 13215 and find the biggest common factor number .

Step-1: Prime Factorization of 13203

Prime factors of 13203 are 3, 163. Prime factorization of 13203 in exponential form is:

13203 = 3⁴ × 163¹

Step-2: Prime Factorization of 13215

Prime factors of 13215 are 3, 5, 881. Prime factorization of 13215 in exponential form is:

13215 = 3¹ × 5¹ × 881¹

Step-3: Factors of 13203

List of positive integer factors of 13203 that divides 13203 without a remainder.

1, 3, 9, 27, 81, 163, 489, 1467, 4401

Step-4: Factors of 13215

List of positive integer factors of 13215 that divides 13203 without a remainder.

1, 3, 5, 15, 881, 2643, 4405

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 13203 and 13215. The biggest common factor number is the GCF number.
So the greatest common factor 13203 and 13215 is 3.

Also check out the Least Common Multiple of 13203 and 13215