What is the Greatest Common Factor of 72390 and 72399?

Greatest common factor (GCF) of 72390 and 72399 is 3.

GCF(72390,72399) = 3

We will now calculate the prime factors of 72390 and 72399, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72390 and 72399.

How to find the GCF of 72390 and 72399?

We will first find the prime factorization of 72390 and 72399. After we will calculate the factors of 72390 and 72399 and find the biggest common factor number .

Step-1: Prime Factorization of 72390

Prime factors of 72390 are 2, 3, 5, 19, 127. Prime factorization of 72390 in exponential form is:

72390 = 2¹ × 3¹ × 5¹ × 19¹ × 127¹

Step-2: Prime Factorization of 72399

Prime factors of 72399 are 3, 24133. Prime factorization of 72399 in exponential form is:

72399 = 3¹ × 24133¹

Step-3: Factors of 72390

List of positive integer factors of 72390 that divides 72390 without a remainder.

1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 127, 190, 254, 285, 381, 570, 635, 762, 1270, 1905, 2413, 3810, 4826, 7239, 12065, 14478, 24130, 36195

Step-4: Factors of 72399

List of positive integer factors of 72399 that divides 72390 without a remainder.

1, 3, 24133

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72390 and 72399. The biggest common factor number is the GCF number.
So the greatest common factor 72390 and 72399 is 3.

Also check out the Least Common Multiple of 72390 and 72399