What is the Greatest Common Factor of 13870 and 13889?

Greatest common factor (GCF) of 13870 and 13889 is 19.

GCF(13870,13889) = 19

We will now calculate the prime factors of 13870 and 13889, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 13870 and 13889.

How to find the GCF of 13870 and 13889?

We will first find the prime factorization of 13870 and 13889. After we will calculate the factors of 13870 and 13889 and find the biggest common factor number .

Step-1: Prime Factorization of 13870

Prime factors of 13870 are 2, 5, 19, 73. Prime factorization of 13870 in exponential form is:

13870 = 2¹ × 5¹ × 19¹ × 73¹

Step-2: Prime Factorization of 13889

Prime factors of 13889 are 17, 19, 43. Prime factorization of 13889 in exponential form is:

13889 = 17¹ × 19¹ × 43¹

Step-3: Factors of 13870

List of positive integer factors of 13870 that divides 13870 without a remainder.

1, 2, 5, 10, 19, 38, 73, 95, 146, 190, 365, 730, 1387, 2774, 6935

Step-4: Factors of 13889

List of positive integer factors of 13889 that divides 13870 without a remainder.

1, 17, 19, 43, 323, 731, 817

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 13870 and 13889. The biggest common factor number is the GCF number.
So the greatest common factor 13870 and 13889 is 19.

Also check out the Least Common Multiple of 13870 and 13889