What is the Greatest Common Factor of 12485 and 12490?

Greatest common factor (GCF) of 12485 and 12490 is 5.

GCF(12485,12490) = 5

We will now calculate the prime factors of 12485 and 12490, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 12485 and 12490.

How to find the GCF of 12485 and 12490?

We will first find the prime factorization of 12485 and 12490. After we will calculate the factors of 12485 and 12490 and find the biggest common factor number .

Step-1: Prime Factorization of 12485

Prime factors of 12485 are 5, 11, 227. Prime factorization of 12485 in exponential form is:

12485 = 5¹ × 11¹ × 227¹

Step-2: Prime Factorization of 12490

Prime factors of 12490 are 2, 5, 1249. Prime factorization of 12490 in exponential form is:

12490 = 2¹ × 5¹ × 1249¹

Step-3: Factors of 12485

List of positive integer factors of 12485 that divides 12485 without a remainder.

1, 5, 11, 55, 227, 1135, 2497

Step-4: Factors of 12490

List of positive integer factors of 12490 that divides 12485 without a remainder.

1, 2, 5, 10, 1249, 2498, 6245

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 12485 and 12490. The biggest common factor number is the GCF number.
So the greatest common factor 12485 and 12490 is 5.

Also check out the Least Common Multiple of 12485 and 12490