What is the Greatest Common Factor of 18918 and 18930?

Greatest common factor (GCF) of 18918 and 18930 is 6.

GCF(18918,18930) = 6

We will now calculate the prime factors of 18918 and 18930, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18918 and 18930.

How to find the GCF of 18918 and 18930?

We will first find the prime factorization of 18918 and 18930. After we will calculate the factors of 18918 and 18930 and find the biggest common factor number .

Step-1: Prime Factorization of 18918

Prime factors of 18918 are 2, 3, 1051. Prime factorization of 18918 in exponential form is:

18918 = 2¹ × 3² × 1051¹

Step-2: Prime Factorization of 18930

Prime factors of 18930 are 2, 3, 5, 631. Prime factorization of 18930 in exponential form is:

18930 = 2¹ × 3¹ × 5¹ × 631¹

Step-3: Factors of 18918

List of positive integer factors of 18918 that divides 18918 without a remainder.

1, 2, 3, 6, 9, 18, 1051, 2102, 3153, 6306, 9459

Step-4: Factors of 18930

List of positive integer factors of 18930 that divides 18918 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 631, 1262, 1893, 3155, 3786, 6310, 9465

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18918 and 18930. The biggest common factor number is the GCF number.
So the greatest common factor 18918 and 18930 is 6.

Also check out the Least Common Multiple of 18918 and 18930