What is the Greatest Common Factor of 30930 and 30939?

Greatest common factor (GCF) of 30930 and 30939 is 3.

GCF(30930,30939) = 3

We will now calculate the prime factors of 30930 and 30939, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30930 and 30939.

How to find the GCF of 30930 and 30939?

We will first find the prime factorization of 30930 and 30939. After we will calculate the factors of 30930 and 30939 and find the biggest common factor number .

Step-1: Prime Factorization of 30930

Prime factors of 30930 are 2, 3, 5, 1031. Prime factorization of 30930 in exponential form is:

30930 = 2¹ × 3¹ × 5¹ × 1031¹

Step-2: Prime Factorization of 30939

Prime factors of 30939 are 3, 10313. Prime factorization of 30939 in exponential form is:

30939 = 3¹ × 10313¹

Step-3: Factors of 30930

List of positive integer factors of 30930 that divides 30930 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 1031, 2062, 3093, 5155, 6186, 10310, 15465

Step-4: Factors of 30939

List of positive integer factors of 30939 that divides 30930 without a remainder.

1, 3, 10313

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 30930 and 30939. The biggest common factor number is the GCF number.
So the greatest common factor 30930 and 30939 is 3.

Also check out the Least Common Multiple of 30930 and 30939