What is the Greatest Common Factor of 13770 and 13788?

Greatest common factor (GCF) of 13770 and 13788 is 18.

GCF(13770,13788) = 18

We will now calculate the prime factors of 13770 and 13788, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 13770 and 13788.

How to find the GCF of 13770 and 13788?

We will first find the prime factorization of 13770 and 13788. After we will calculate the factors of 13770 and 13788 and find the biggest common factor number .

Step-1: Prime Factorization of 13770

Prime factors of 13770 are 2, 3, 5, 17. Prime factorization of 13770 in exponential form is:

13770 = 2¹ × 3⁴ × 5¹ × 17¹

Step-2: Prime Factorization of 13788

Prime factors of 13788 are 2, 3, 383. Prime factorization of 13788 in exponential form is:

13788 = 2² × 3² × 383¹

Step-3: Factors of 13770

List of positive integer factors of 13770 that divides 13770 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 30, 34, 45, 51, 54, 81, 85, 90, 102, 135, 153, 162, 170, 255, 270, 306, 405, 459, 510, 765, 810, 918, 1377, 1530, 2295, 2754, 4590, 6885

Step-4: Factors of 13788

List of positive integer factors of 13788 that divides 13770 without a remainder.

1, 2, 3, 4, 6, 9, 12, 18, 36, 383, 766, 1149, 1532, 2298, 3447, 4596, 6894

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 13770 and 13788. The biggest common factor number is the GCF number.
So the greatest common factor 13770 and 13788 is 18.

Also check out the Least Common Multiple of 13770 and 13788