What is the Greatest Common Factor of 18438 and 18443?

Greatest common factor (GCF) of 18438 and 18443 is 1.

GCF(18438,18443) = 1

We will now calculate the prime factors of 18438 and 18443, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18438 and 18443.

How to find the GCF of 18438 and 18443?

We will first find the prime factorization of 18438 and 18443. After we will calculate the factors of 18438 and 18443 and find the biggest common factor number .

Step-1: Prime Factorization of 18438

Prime factors of 18438 are 2, 3, 7, 439. Prime factorization of 18438 in exponential form is:

18438 = 2¹ × 3¹ × 7¹ × 439¹

Step-2: Prime Factorization of 18443

Prime factors of 18443 are 18443. Prime factorization of 18443 in exponential form is:

18443 = 18443¹

Step-3: Factors of 18438

List of positive integer factors of 18438 that divides 18438 without a remainder.

1, 2, 3, 6, 7, 14, 21, 42, 439, 878, 1317, 2634, 3073, 6146, 9219

Step-4: Factors of 18443

List of positive integer factors of 18443 that divides 18438 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18438 and 18443. The biggest common factor number is the GCF number.
So the greatest common factor 18438 and 18443 is 1.

Also check out the Least Common Multiple of 18438 and 18443