What is the Greatest Common Factor of 18438 and 18451?

Greatest common factor (GCF) of 18438 and 18451 is 1.

GCF(18438,18451) = 1

We will now calculate the prime factors of 18438 and 18451, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18438 and 18451.

How to find the GCF of 18438 and 18451?

We will first find the prime factorization of 18438 and 18451. After we will calculate the factors of 18438 and 18451 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 18451

Prime factors of 18451 are 18451. Prime factorization of 18451 in exponential form is:

18451 = 18451¹

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 18451

List of positive integer factors of 18451 that divides 18438 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18438 and 18451. The biggest common factor number is the GCF number.
So the greatest common factor 18438 and 18451 is 1.

Also check out the Least Common Multiple of 18438 and 18451