What is the Greatest Common Factor of 13503 and 13515?

Greatest common factor (GCF) of 13503 and 13515 is 3.

GCF(13503,13515) = 3

We will now calculate the prime factors of 13503 and 13515, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 13503 and 13515.

How to find the GCF of 13503 and 13515?

We will first find the prime factorization of 13503 and 13515. After we will calculate the factors of 13503 and 13515 and find the biggest common factor number .

Step-1: Prime Factorization of 13503

Prime factors of 13503 are 3, 7, 643. Prime factorization of 13503 in exponential form is:

13503 = 3¹ × 7¹ × 643¹

Step-2: Prime Factorization of 13515

Prime factors of 13515 are 3, 5, 17, 53. Prime factorization of 13515 in exponential form is:

13515 = 3¹ × 5¹ × 17¹ × 53¹

Step-3: Factors of 13503

List of positive integer factors of 13503 that divides 13503 without a remainder.

1, 3, 7, 21, 643, 1929, 4501

Step-4: Factors of 13515

List of positive integer factors of 13515 that divides 13503 without a remainder.

1, 3, 5, 15, 17, 51, 53, 85, 159, 255, 265, 795, 901, 2703, 4505

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 13503 and 13515. The biggest common factor number is the GCF number.
So the greatest common factor 13503 and 13515 is 3.

Also check out the Least Common Multiple of 13503 and 13515