What is the Greatest Common Factor of 11538 and 11556?

Greatest common factor (GCF) of 11538 and 11556 is 18.

GCF(11538,11556) = 18

We will now calculate the prime factors of 11538 and 11556, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 11538 and 11556.

How to find the GCF of 11538 and 11556?

We will first find the prime factorization of 11538 and 11556. After we will calculate the factors of 11538 and 11556 and find the biggest common factor number .

Step-1: Prime Factorization of 11538

Prime factors of 11538 are 2, 3, 641. Prime factorization of 11538 in exponential form is:

11538 = 2¹ × 3² × 641¹

Step-2: Prime Factorization of 11556

Prime factors of 11556 are 2, 3, 107. Prime factorization of 11556 in exponential form is:

11556 = 2² × 3³ × 107¹

Step-3: Factors of 11538

List of positive integer factors of 11538 that divides 11538 without a remainder.

1, 2, 3, 6, 9, 18, 641, 1282, 1923, 3846, 5769

Step-4: Factors of 11556

List of positive integer factors of 11556 that divides 11538 without a remainder.

1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 107, 108, 214, 321, 428, 642, 963, 1284, 1926, 2889, 3852, 5778

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 11538 and 11556. The biggest common factor number is the GCF number.
So the greatest common factor 11538 and 11556 is 18.

Also check out the Least Common Multiple of 11538 and 11556