What is the Greatest Common Factor of 7305 and 7320?

Greatest common factor (GCF) of 7305 and 7320 is 15.

GCF(7305,7320) = 15

We will now calculate the prime factors of 7305 and 7320, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7305 and 7320.

How to find the GCF of 7305 and 7320?

We will first find the prime factorization of 7305 and 7320. After we will calculate the factors of 7305 and 7320 and find the biggest common factor number .

Step-1: Prime Factorization of 7305

Prime factors of 7305 are 3, 5, 487. Prime factorization of 7305 in exponential form is:

7305 = 3¹ × 5¹ × 487¹

Step-2: Prime Factorization of 7320

Prime factors of 7320 are 2, 3, 5, 61. Prime factorization of 7320 in exponential form is:

7320 = 2³ × 3¹ × 5¹ × 61¹

Step-3: Factors of 7305

List of positive integer factors of 7305 that divides 7305 without a remainder.

1, 3, 5, 15, 487, 1461, 2435

Step-4: Factors of 7320

List of positive integer factors of 7320 that divides 7305 without a remainder.

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 120, 122, 183, 244, 305, 366, 488, 610, 732, 915, 1220, 1464, 1830, 2440, 3660

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7305 and 7320. The biggest common factor number is the GCF number.
So the greatest common factor 7305 and 7320 is 15.

Also check out the Least Common Multiple of 7305 and 7320