What is the Greatest Common Factor of 12543 and 12553?

Greatest common factor (GCF) of 12543 and 12553 is 1.

GCF(12543,12553) = 1

We will now calculate the prime factors of 12543 and 12553, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 12543 and 12553.

How to find the GCF of 12543 and 12553?

We will first find the prime factorization of 12543 and 12553. After we will calculate the factors of 12543 and 12553 and find the biggest common factor number .

Step-1: Prime Factorization of 12543

Prime factors of 12543 are 3, 37, 113. Prime factorization of 12543 in exponential form is:

12543 = 3¹ × 37¹ × 113¹

Step-2: Prime Factorization of 12553

Prime factors of 12553 are 12553. Prime factorization of 12553 in exponential form is:

12553 = 12553¹

Step-3: Factors of 12543

List of positive integer factors of 12543 that divides 12543 without a remainder.

1, 3, 37, 111, 113, 339, 4181

Step-4: Factors of 12553

List of positive integer factors of 12553 that divides 12543 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 12543 and 12553. The biggest common factor number is the GCF number.
So the greatest common factor 12543 and 12553 is 1.

Also check out the Least Common Multiple of 12543 and 12553