What is the Greatest Common Factor of 39930 and 39939?

Greatest common factor (GCF) of 39930 and 39939 is 3.

GCF(39930,39939) = 3

We will now calculate the prime factors of 39930 and 39939, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 39930 and 39939.

How to find the GCF of 39930 and 39939?

We will first find the prime factorization of 39930 and 39939. After we will calculate the factors of 39930 and 39939 and find the biggest common factor number .

Step-1: Prime Factorization of 39930

Prime factors of 39930 are 2, 3, 5, 11. Prime factorization of 39930 in exponential form is:

39930 = 2¹ × 3¹ × 5¹ × 11³

Step-2: Prime Factorization of 39939

Prime factors of 39939 are 3, 13313. Prime factorization of 39939 in exponential form is:

39939 = 3¹ × 13313¹

Step-3: Factors of 39930

List of positive integer factors of 39930 that divides 39930 without a remainder.

1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 121, 165, 242, 330, 363, 605, 726, 1210, 1331, 1815, 2662, 3630, 3993, 6655, 7986, 13310, 19965

Step-4: Factors of 39939

List of positive integer factors of 39939 that divides 39930 without a remainder.

1, 3, 13313

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 39930 and 39939. The biggest common factor number is the GCF number.
So the greatest common factor 39930 and 39939 is 3.

Also check out the Least Common Multiple of 39930 and 39939