What is the Greatest Common Factor of 7543 and 7561?

Greatest common factor (GCF) of 7543 and 7561 is 1.

GCF(7543,7561) = 1

We will now calculate the prime factors of 7543 and 7561, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7543 and 7561.

How to find the GCF of 7543 and 7561?

We will first find the prime factorization of 7543 and 7561. After we will calculate the factors of 7543 and 7561 and find the biggest common factor number .

Step-1: Prime Factorization of 7543

Prime factors of 7543 are 19, 397. Prime factorization of 7543 in exponential form is:

7543 = 19¹ × 397¹

Step-2: Prime Factorization of 7561

Prime factors of 7561 are 7561. Prime factorization of 7561 in exponential form is:

7561 = 7561¹

Step-3: Factors of 7543

List of positive integer factors of 7543 that divides 7543 without a remainder.

1, 19, 397

Step-4: Factors of 7561

List of positive integer factors of 7561 that divides 7543 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7543 and 7561. The biggest common factor number is the GCF number.
So the greatest common factor 7543 and 7561 is 1.

Also check out the Least Common Multiple of 7543 and 7561