What is the Greatest Common Factor of 72405 and 72418?

Greatest common factor (GCF) of 72405 and 72418 is 1.

GCF(72405,72418) = 1

We will now calculate the prime factors of 72405 and 72418, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72405 and 72418.

How to find the GCF of 72405 and 72418?

We will first find the prime factorization of 72405 and 72418. After we will calculate the factors of 72405 and 72418 and find the biggest common factor number .

Step-1: Prime Factorization of 72405

Prime factors of 72405 are 3, 5, 1609. Prime factorization of 72405 in exponential form is:

72405 = 3² × 5¹ × 1609¹

Step-2: Prime Factorization of 72418

Prime factors of 72418 are 2, 36209. Prime factorization of 72418 in exponential form is:

72418 = 2¹ × 36209¹

Step-3: Factors of 72405

List of positive integer factors of 72405 that divides 72405 without a remainder.

1, 3, 5, 9, 15, 45, 1609, 4827, 8045, 14481, 24135

Step-4: Factors of 72418

List of positive integer factors of 72418 that divides 72405 without a remainder.

1, 2, 36209

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72405 and 72418. The biggest common factor number is the GCF number.
So the greatest common factor 72405 and 72418 is 1.

Also check out the Least Common Multiple of 72405 and 72418