What is the Greatest Common Factor of 11790 and 11805?

Greatest common factor (GCF) of 11790 and 11805 is 15.

GCF(11790,11805) = 15

We will now calculate the prime factors of 11790 and 11805, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 11790 and 11805.

How to find the GCF of 11790 and 11805?

We will first find the prime factorization of 11790 and 11805. After we will calculate the factors of 11790 and 11805 and find the biggest common factor number .

Step-1: Prime Factorization of 11790

Prime factors of 11790 are 2, 3, 5, 131. Prime factorization of 11790 in exponential form is:

11790 = 2¹ × 3² × 5¹ × 131¹

Step-2: Prime Factorization of 11805

Prime factors of 11805 are 3, 5, 787. Prime factorization of 11805 in exponential form is:

11805 = 3¹ × 5¹ × 787¹

Step-3: Factors of 11790

List of positive integer factors of 11790 that divides 11790 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 131, 262, 393, 655, 786, 1179, 1310, 1965, 2358, 3930, 5895

Step-4: Factors of 11805

List of positive integer factors of 11805 that divides 11790 without a remainder.

1, 3, 5, 15, 787, 2361, 3935

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 11790 and 11805. The biggest common factor number is the GCF number.
So the greatest common factor 11790 and 11805 is 15.

Also check out the Least Common Multiple of 11790 and 11805