What is the Greatest Common Factor of 27531 and 27543?

Greatest common factor (GCF) of 27531 and 27543 is 3.

GCF(27531,27543) = 3

We will now calculate the prime factors of 27531 and 27543, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 27531 and 27543.

How to find the GCF of 27531 and 27543?

We will first find the prime factorization of 27531 and 27543. After we will calculate the factors of 27531 and 27543 and find the biggest common factor number .

Step-1: Prime Factorization of 27531

Prime factors of 27531 are 3, 7, 19, 23. Prime factorization of 27531 in exponential form is:

27531 = 3² × 7¹ × 19¹ × 23¹

Step-2: Prime Factorization of 27543

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

27543 = 3¹ × 9181¹

Step-3: Factors of 27531

List of positive integer factors of 27531 that divides 27531 without a remainder.

1, 3, 7, 9, 19, 21, 23, 57, 63, 69, 133, 161, 171, 207, 399, 437, 483, 1197, 1311, 1449, 3059, 3933, 9177

Step-4: Factors of 27543

List of positive integer factors of 27543 that divides 27531 without a remainder.

1, 3, 9181

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 27531 and 27543. The biggest common factor number is the GCF number.
So the greatest common factor 27531 and 27543 is 3.

Also check out the Least Common Multiple of 27531 and 27543