What is the Greatest Common Factor of 13806 and 13815?

Greatest common factor (GCF) of 13806 and 13815 is 9.

GCF(13806,13815) = 9

We will now calculate the prime factors of 13806 and 13815, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 13806 and 13815.

How to find the GCF of 13806 and 13815?

We will first find the prime factorization of 13806 and 13815. After we will calculate the factors of 13806 and 13815 and find the biggest common factor number .

Step-1: Prime Factorization of 13806

Prime factors of 13806 are 2, 3, 13, 59. Prime factorization of 13806 in exponential form is:

13806 = 2¹ × 3² × 13¹ × 59¹

Step-2: Prime Factorization of 13815

Prime factors of 13815 are 3, 5, 307. Prime factorization of 13815 in exponential form is:

13815 = 3² × 5¹ × 307¹

Step-3: Factors of 13806

List of positive integer factors of 13806 that divides 13806 without a remainder.

1, 2, 3, 6, 9, 13, 18, 26, 39, 59, 78, 117, 118, 177, 234, 354, 531, 767, 1062, 1534, 2301, 4602, 6903

Step-4: Factors of 13815

List of positive integer factors of 13815 that divides 13806 without a remainder.

1, 3, 5, 9, 15, 45, 307, 921, 1535, 2763, 4605

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 13806 and 13815. The biggest common factor number is the GCF number.
So the greatest common factor 13806 and 13815 is 9.

Also check out the Least Common Multiple of 13806 and 13815