What is the Greatest Common Factor of 12405 and 12425?

Greatest common factor (GCF) of 12405 and 12425 is 5.

GCF(12405,12425) = 5

We will now calculate the prime factors of 12405 and 12425, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 12405 and 12425.

How to find the GCF of 12405 and 12425?

We will first find the prime factorization of 12405 and 12425. After we will calculate the factors of 12405 and 12425 and find the biggest common factor number .

Step-1: Prime Factorization of 12405

Prime factors of 12405 are 3, 5, 827. Prime factorization of 12405 in exponential form is:

12405 = 3¹ × 5¹ × 827¹

Step-2: Prime Factorization of 12425

Prime factors of 12425 are 5, 7, 71. Prime factorization of 12425 in exponential form is:

12425 = 5² × 7¹ × 71¹

Step-3: Factors of 12405

List of positive integer factors of 12405 that divides 12405 without a remainder.

1, 3, 5, 15, 827, 2481, 4135

Step-4: Factors of 12425

List of positive integer factors of 12425 that divides 12405 without a remainder.

1, 5, 7, 25, 35, 71, 175, 355, 497, 1775, 2485

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 12405 and 12425. The biggest common factor number is the GCF number.
So the greatest common factor 12405 and 12425 is 5.

Also check out the Least Common Multiple of 12405 and 12425