What is the Greatest Common Factor of 82400 and 82405?

Greatest common factor (GCF) of 82400 and 82405 is 5.

GCF(82400,82405) = 5

We will now calculate the prime factors of 82400 and 82405, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 82400 and 82405.

How to find the GCF of 82400 and 82405?

We will first find the prime factorization of 82400 and 82405. After we will calculate the factors of 82400 and 82405 and find the biggest common factor number .

Step-1: Prime Factorization of 82400

Prime factors of 82400 are 2, 5, 103. Prime factorization of 82400 in exponential form is:

82400 = 2⁵ × 5² × 103¹

Step-2: Prime Factorization of 82405

Prime factors of 82405 are 5, 16481. Prime factorization of 82405 in exponential form is:

82405 = 5¹ × 16481¹

Step-3: Factors of 82400

List of positive integer factors of 82400 that divides 82400 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 103, 160, 200, 206, 400, 412, 515, 800, 824, 1030, 1648, 2060, 2575, 3296, 4120, 5150, 8240, 10300, 16480, 20600, 41200

Step-4: Factors of 82405

List of positive integer factors of 82405 that divides 82400 without a remainder.

1, 5, 16481

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 82400 and 82405. The biggest common factor number is the GCF number.
So the greatest common factor 82400 and 82405 is 5.

Also check out the Least Common Multiple of 82400 and 82405