What is the Greatest Common Factor of 18930 and 18939?

Greatest common factor (GCF) of 18930 and 18939 is 3.

GCF(18930,18939) = 3

We will now calculate the prime factors of 18930 and 18939, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18930 and 18939.

How to find the GCF of 18930 and 18939?

We will first find the prime factorization of 18930 and 18939. After we will calculate the factors of 18930 and 18939 and find the biggest common factor number .

Step-1: 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-2: Prime Factorization of 18939

Prime factors of 18939 are 3, 59, 107. Prime factorization of 18939 in exponential form is:

18939 = 3¹ × 59¹ × 107¹

Step-3: Factors of 18930

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

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

Step-4: Factors of 18939

List of positive integer factors of 18939 that divides 18930 without a remainder.

1, 3, 59, 107, 177, 321, 6313

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18930 and 18939. The biggest common factor number is the GCF number.
So the greatest common factor 18930 and 18939 is 3.

Also check out the Least Common Multiple of 18930 and 18939