What is the Greatest Common Factor of 18458 and 18478?

Greatest common factor (GCF) of 18458 and 18478 is 2.

GCF(18458,18478) = 2

We will now calculate the prime factors of 18458 and 18478, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18458 and 18478.

How to find the GCF of 18458 and 18478?

We will first find the prime factorization of 18458 and 18478. After we will calculate the factors of 18458 and 18478 and find the biggest common factor number .

Step-1: Prime Factorization of 18458

Prime factors of 18458 are 2, 11, 839. Prime factorization of 18458 in exponential form is:

18458 = 2¹ × 11¹ × 839¹

Step-2: Prime Factorization of 18478

Prime factors of 18478 are 2, 9239. Prime factorization of 18478 in exponential form is:

18478 = 2¹ × 9239¹

Step-3: Factors of 18458

List of positive integer factors of 18458 that divides 18458 without a remainder.

1, 2, 11, 22, 839, 1678, 9229

Step-4: Factors of 18478

List of positive integer factors of 18478 that divides 18458 without a remainder.

1, 2, 9239

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18458 and 18478. The biggest common factor number is the GCF number.
So the greatest common factor 18458 and 18478 is 2.

Also check out the Least Common Multiple of 18458 and 18478