What is the Greatest Common Factor of 27555 and 27564?

Greatest common factor (GCF) of 27555 and 27564 is 3.

GCF(27555,27564) = 3

We will now calculate the prime factors of 27555 and 27564, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 27555 and 27564.

How to find the GCF of 27555 and 27564?

We will first find the prime factorization of 27555 and 27564. After we will calculate the factors of 27555 and 27564 and find the biggest common factor number .

Step-1: Prime Factorization of 27555

Prime factors of 27555 are 3, 5, 11, 167. Prime factorization of 27555 in exponential form is:

27555 = 3¹ × 5¹ × 11¹ × 167¹

Step-2: Prime Factorization of 27564

Prime factors of 27564 are 2, 3, 2297. Prime factorization of 27564 in exponential form is:

27564 = 2² × 3¹ × 2297¹

Step-3: Factors of 27555

List of positive integer factors of 27555 that divides 27555 without a remainder.

1, 3, 5, 11, 15, 33, 55, 165, 167, 501, 835, 1837, 2505, 5511, 9185

Step-4: Factors of 27564

List of positive integer factors of 27564 that divides 27555 without a remainder.

1, 2, 3, 4, 6, 12, 2297, 4594, 6891, 9188, 13782

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 27555 and 27564. The biggest common factor number is the GCF number.
So the greatest common factor 27555 and 27564 is 3.

Also check out the Least Common Multiple of 27555 and 27564