What is the Greatest Common Factor of 27543 and 27561?

Greatest common factor (GCF) of 27543 and 27561 is 3.

GCF(27543,27561) = 3

We will now calculate the prime factors of 27543 and 27561, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 27543 and 27561.

How to find the GCF of 27543 and 27561?

We will first find the prime factorization of 27543 and 27561. After we will calculate the factors of 27543 and 27561 and find the biggest common factor number .

Step-1: Prime Factorization of 27543

Prime factors of 27543 are 3, 9181. Prime factorization of 27543 in exponential form is:

27543 = 3¹ × 9181¹

Step-2: Prime Factorization of 27561

Prime factors of 27561 are 3, 9187. Prime factorization of 27561 in exponential form is:

27561 = 3¹ × 9187¹

Step-3: Factors of 27543

List of positive integer factors of 27543 that divides 27543 without a remainder.

1, 3, 9181

Step-4: Factors of 27561

List of positive integer factors of 27561 that divides 27543 without a remainder.

1, 3, 9187

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 27543 and 27561. The biggest common factor number is the GCF number.
So the greatest common factor 27543 and 27561 is 3.

Also check out the Least Common Multiple of 27543 and 27561