What is the Greatest Common Factor of 18421 and 18429?

Greatest common factor (GCF) of 18421 and 18429 is 1.

GCF(18421,18429) = 1

We will now calculate the prime factors of 18421 and 18429, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18421 and 18429.

How to find the GCF of 18421 and 18429?

We will first find the prime factorization of 18421 and 18429. After we will calculate the factors of 18421 and 18429 and find the biggest common factor number .

Step-1: Prime Factorization of 18421

Prime factors of 18421 are 13, 109. Prime factorization of 18421 in exponential form is:

18421 = 13² × 109¹

Step-2: Prime Factorization of 18429

Prime factors of 18429 are 3, 6143. Prime factorization of 18429 in exponential form is:

18429 = 3¹ × 6143¹

Step-3: Factors of 18421

List of positive integer factors of 18421 that divides 18421 without a remainder.

1, 13, 109, 169, 1417

Step-4: Factors of 18429

List of positive integer factors of 18429 that divides 18421 without a remainder.

1, 3, 6143

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18421 and 18429. The biggest common factor number is the GCF number.
So the greatest common factor 18421 and 18429 is 1.

Also check out the Least Common Multiple of 18421 and 18429