What is the Greatest Common Factor of 72420 and 72439?

Greatest common factor (GCF) of 72420 and 72439 is 1.

GCF(72420,72439) = 1

We will now calculate the prime factors of 72420 and 72439, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72420 and 72439.

How to find the GCF of 72420 and 72439?

We will first find the prime factorization of 72420 and 72439. After we will calculate the factors of 72420 and 72439 and find the biggest common factor number .

Step-1: Prime Factorization of 72420

Prime factors of 72420 are 2, 3, 5, 17, 71. Prime factorization of 72420 in exponential form is:

72420 = 2² × 3¹ × 5¹ × 17¹ × 71¹

Step-2: Prime Factorization of 72439

Prime factors of 72439 are 107, 677. Prime factorization of 72439 in exponential form is:

72439 = 107¹ × 677¹

Step-3: Factors of 72420

List of positive integer factors of 72420 that divides 72420 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 71, 85, 102, 142, 170, 204, 213, 255, 284, 340, 355, 426, 510, 710, 852, 1020, 1065, 1207, 1420, 2130, 2414, 3621, 4260, 4828, 6035, 7242, 12070, 14484, 18105, 24140, 36210

Step-4: Factors of 72439

List of positive integer factors of 72439 that divides 72420 without a remainder.

1, 107, 677

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72420 and 72439. The biggest common factor number is the GCF number.
So the greatest common factor 72420 and 72439 is 1.

Also check out the Least Common Multiple of 72420 and 72439