What is the Greatest Common Factor of 18945 and 18950?

Greatest common factor (GCF) of 18945 and 18950 is 5.

GCF(18945,18950) = 5

We will now calculate the prime factors of 18945 and 18950, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18945 and 18950.

How to find the GCF of 18945 and 18950?

We will first find the prime factorization of 18945 and 18950. After we will calculate the factors of 18945 and 18950 and find the biggest common factor number .

Step-1: Prime Factorization of 18945

Prime factors of 18945 are 3, 5, 421. Prime factorization of 18945 in exponential form is:

18945 = 3² × 5¹ × 421¹

Step-2: Prime Factorization of 18950

Prime factors of 18950 are 2, 5, 379. Prime factorization of 18950 in exponential form is:

18950 = 2¹ × 5² × 379¹

Step-3: Factors of 18945

List of positive integer factors of 18945 that divides 18945 without a remainder.

1, 3, 5, 9, 15, 45, 421, 1263, 2105, 3789, 6315

Step-4: Factors of 18950

List of positive integer factors of 18950 that divides 18945 without a remainder.

1, 2, 5, 10, 25, 50, 379, 758, 1895, 3790, 9475

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18945 and 18950. The biggest common factor number is the GCF number.
So the greatest common factor 18945 and 18950 is 5.

Also check out the Least Common Multiple of 18945 and 18950