What is the Greatest Common Factor of 31218 and 31238?

Greatest common factor (GCF) of 31218 and 31238 is 2.

GCF(31218,31238) = 2

We will now calculate the prime factors of 31218 and 31238, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 31218 and 31238.

How to find the GCF of 31218 and 31238?

We will first find the prime factorization of 31218 and 31238. After we will calculate the factors of 31218 and 31238 and find the biggest common factor number .

Step-1: Prime Factorization of 31218

Prime factors of 31218 are 2, 3, 11, 43. Prime factorization of 31218 in exponential form is:

31218 = 2¹ × 3¹ × 11² × 43¹

Step-2: Prime Factorization of 31238

Prime factors of 31238 are 2, 15619. Prime factorization of 31238 in exponential form is:

31238 = 2¹ × 15619¹

Step-3: Factors of 31218

List of positive integer factors of 31218 that divides 31218 without a remainder.

1, 2, 3, 6, 11, 22, 33, 43, 66, 86, 121, 129, 242, 258, 363, 473, 726, 946, 1419, 2838, 5203, 10406, 15609

Step-4: Factors of 31238

List of positive integer factors of 31238 that divides 31218 without a remainder.

1, 2, 15619

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 31218 and 31238. The biggest common factor number is the GCF number.
So the greatest common factor 31218 and 31238 is 2.

Also check out the Least Common Multiple of 31218 and 31238