What is the Greatest Common Factor of 7561 and 7578?

Greatest common factor (GCF) of 7561 and 7578 is 1.

GCF(7561,7578) = 1

We will now calculate the prime factors of 7561 and 7578, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7561 and 7578.

How to find the GCF of 7561 and 7578?

We will first find the prime factorization of 7561 and 7578. After we will calculate the factors of 7561 and 7578 and find the biggest common factor number .

Step-1: Prime Factorization of 7561

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

7561 = 7561¹

Step-2: Prime Factorization of 7578

Prime factors of 7578 are 2, 3, 421. Prime factorization of 7578 in exponential form is:

7578 = 2¹ × 3² × 421¹

Step-3: Factors of 7561

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

Step-4: Factors of 7578

List of positive integer factors of 7578 that divides 7561 without a remainder.

1, 2, 3, 6, 9, 18, 421, 842, 1263, 2526, 3789

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7561 and 7578. The biggest common factor number is the GCF number.
So the greatest common factor 7561 and 7578 is 1.

Also check out the Least Common Multiple of 7561 and 7578