What is the Greatest Common Factor of 13420 and 13430?

Greatest common factor (GCF) of 13420 and 13430 is 10.

GCF(13420,13430) = 10

We will now calculate the prime factors of 13420 and 13430, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 13420 and 13430.

How to find the GCF of 13420 and 13430?

We will first find the prime factorization of 13420 and 13430. After we will calculate the factors of 13420 and 13430 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 13430

Prime factors of 13430 are 2, 5, 17, 79. Prime factorization of 13430 in exponential form is:

13430 = 2¹ × 5¹ × 17¹ × 79¹

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 13430

List of positive integer factors of 13430 that divides 13420 without a remainder.

1, 2, 5, 10, 17, 34, 79, 85, 158, 170, 395, 790, 1343, 2686, 6715

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 13420 and 13430. The biggest common factor number is the GCF number.
So the greatest common factor 13420 and 13430 is 10.

Also check out the Least Common Multiple of 13420 and 13430