What is the Greatest Common Factor of 31788 and 31806?

Greatest common factor (GCF) of 31788 and 31806 is 18.

GCF(31788,31806) = 18

We will now calculate the prime factors of 31788 and 31806, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 31788 and 31806.

How to find the GCF of 31788 and 31806?

We will first find the prime factorization of 31788 and 31806. After we will calculate the factors of 31788 and 31806 and find the biggest common factor number .

Step-1: Prime Factorization of 31788

Prime factors of 31788 are 2, 3, 883. Prime factorization of 31788 in exponential form is:

31788 = 2² × 3² × 883¹

Step-2: Prime Factorization of 31806

Prime factors of 31806 are 2, 3, 19, 31. Prime factorization of 31806 in exponential form is:

31806 = 2¹ × 3³ × 19¹ × 31¹

Step-3: Factors of 31788

List of positive integer factors of 31788 that divides 31788 without a remainder.

1, 2, 3, 4, 6, 9, 12, 18, 36, 883, 1766, 2649, 3532, 5298, 7947, 10596, 15894

Step-4: Factors of 31806

List of positive integer factors of 31806 that divides 31788 without a remainder.

1, 2, 3, 6, 9, 18, 19, 27, 31, 38, 54, 57, 62, 93, 114, 171, 186, 279, 342, 513, 558, 589, 837, 1026, 1178, 1674, 1767, 3534, 5301, 10602, 15903

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 31788 and 31806. The biggest common factor number is the GCF number.
So the greatest common factor 31788 and 31806 is 18.

Also check out the Least Common Multiple of 31788 and 31806