What is the Greatest Common Factor of 9543 and 9561?

Greatest common factor (GCF) of 9543 and 9561 is 3.

GCF(9543,9561) = 3

We will now calculate the prime factors of 9543 and 9561, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 9543 and 9561.

How to find the GCF of 9543 and 9561?

We will first find the prime factorization of 9543 and 9561. After we will calculate the factors of 9543 and 9561 and find the biggest common factor number .

Step-1: Prime Factorization of 9543

Prime factors of 9543 are 3, 3181. Prime factorization of 9543 in exponential form is:

9543 = 3¹ × 3181¹

Step-2: Prime Factorization of 9561

Prime factors of 9561 are 3, 3187. Prime factorization of 9561 in exponential form is:

9561 = 3¹ × 3187¹

Step-3: Factors of 9543

List of positive integer factors of 9543 that divides 9543 without a remainder.

1, 3, 3181

Step-4: Factors of 9561

List of positive integer factors of 9561 that divides 9543 without a remainder.

1, 3, 3187

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 9543 and 9561. The biggest common factor number is the GCF number.
So the greatest common factor 9543 and 9561 is 3.

Also check out the Least Common Multiple of 9543 and 9561