What is the Greatest Common Factor of 75543 and 75561?

Greatest common factor (GCF) of 75543 and 75561 is 3.

GCF(75543,75561) = 3

We will now calculate the prime factors of 75543 and 75561, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 75543 and 75561.

How to find the GCF of 75543 and 75561?

We will first find the prime factorization of 75543 and 75561. After we will calculate the factors of 75543 and 75561 and find the biggest common factor number .

Step-1: Prime Factorization of 75543

Prime factors of 75543 are 3, 13, 149. Prime factorization of 75543 in exponential form is:

75543 = 3¹ × 13² × 149¹

Step-2: Prime Factorization of 75561

Prime factors of 75561 are 3, 89, 283. Prime factorization of 75561 in exponential form is:

75561 = 3¹ × 89¹ × 283¹

Step-3: Factors of 75543

List of positive integer factors of 75543 that divides 75543 without a remainder.

1, 3, 13, 39, 149, 169, 447, 507, 1937, 5811, 25181

Step-4: Factors of 75561

List of positive integer factors of 75561 that divides 75543 without a remainder.

1, 3, 89, 267, 283, 849, 25187

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 75543 and 75561. The biggest common factor number is the GCF number.
So the greatest common factor 75543 and 75561 is 3.

Also check out the Least Common Multiple of 75543 and 75561