What is the Greatest Common Factor of 13420 and 13425?

Greatest common factor (GCF) of 13420 and 13425 is 5.

GCF(13420,13425) = 5

We will now calculate the prime factors of 13420 and 13425, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 13420 and 13425.

How to find the GCF of 13420 and 13425?

We will first find the prime factorization of 13420 and 13425. After we will calculate the factors of 13420 and 13425 and find the biggest common factor number .

Step-1: Prime Factorization of 13420

Prime factors of 13420 are 2, 5, 11, 61. Prime factorization of 13420 in exponential form is:

13420 = 2² × 5¹ × 11¹ × 61¹

Step-2: Prime Factorization of 13425

Prime factors of 13425 are 3, 5, 179. Prime factorization of 13425 in exponential form is:

13425 = 3¹ × 5² × 179¹

Step-3: Factors of 13420

List of positive integer factors of 13420 that divides 13420 without a remainder.

1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 220, 244, 305, 610, 671, 1220, 1342, 2684, 3355, 6710

Step-4: Factors of 13425

List of positive integer factors of 13425 that divides 13420 without a remainder.

1, 3, 5, 15, 25, 75, 179, 537, 895, 2685, 4475

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 13420 and 13425. The biggest common factor number is the GCF number.
So the greatest common factor 13420 and 13425 is 5.

Also check out the Least Common Multiple of 13420 and 13425