What is the Greatest Common Factor of 7530 and 7545?

Greatest common factor (GCF) of 7530 and 7545 is 15.

GCF(7530,7545) = 15

We will now calculate the prime factors of 7530 and 7545, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7530 and 7545.

How to find the GCF of 7530 and 7545?

We will first find the prime factorization of 7530 and 7545. After we will calculate the factors of 7530 and 7545 and find the biggest common factor number .

Step-1: Prime Factorization of 7530

Prime factors of 7530 are 2, 3, 5, 251. Prime factorization of 7530 in exponential form is:

7530 = 2¹ × 3¹ × 5¹ × 251¹

Step-2: Prime Factorization of 7545

Prime factors of 7545 are 3, 5, 503. Prime factorization of 7545 in exponential form is:

7545 = 3¹ × 5¹ × 503¹

Step-3: Factors of 7530

List of positive integer factors of 7530 that divides 7530 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 251, 502, 753, 1255, 1506, 2510, 3765

Step-4: Factors of 7545

List of positive integer factors of 7545 that divides 7530 without a remainder.

1, 3, 5, 15, 503, 1509, 2515

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7530 and 7545. The biggest common factor number is the GCF number.
So the greatest common factor 7530 and 7545 is 15.

Also check out the Least Common Multiple of 7530 and 7545