What is the Greatest Common Factor of 7563 and 7578?

Greatest common factor (GCF) of 7563 and 7578 is 3.

GCF(7563,7578) = 3

We will now calculate the prime factors of 7563 and 7578, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7563 and 7578.

How to find the GCF of 7563 and 7578?

We will first find the prime factorization of 7563 and 7578. After we will calculate the factors of 7563 and 7578 and find the biggest common factor number .

Step-1: Prime Factorization of 7563

Prime factors of 7563 are 3, 2521. Prime factorization of 7563 in exponential form is:

7563 = 3¹ × 2521¹

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 7563

List of positive integer factors of 7563 that divides 7563 without a remainder.

1, 3, 2521

Step-4: Factors of 7578

List of positive integer factors of 7578 that divides 7563 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 7563 and 7578. The biggest common factor number is the GCF number.
So the greatest common factor 7563 and 7578 is 3.

Also check out the Least Common Multiple of 7563 and 7578