What is the Greatest Common Factor of 31109 and 31122?

Greatest common factor (GCF) of 31109 and 31122 is 13.

GCF(31109,31122) = 13

We will now calculate the prime factors of 31109 and 31122, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 31109 and 31122.

How to find the GCF of 31109 and 31122?

We will first find the prime factorization of 31109 and 31122. After we will calculate the factors of 31109 and 31122 and find the biggest common factor number .

Step-1: Prime Factorization of 31109

Prime factors of 31109 are 13, 2393. Prime factorization of 31109 in exponential form is:

31109 = 13¹ × 2393¹

Step-2: Prime Factorization of 31122

Prime factors of 31122 are 2, 3, 7, 13, 19. Prime factorization of 31122 in exponential form is:

31122 = 2¹ × 3² × 7¹ × 13¹ × 19¹

Step-3: Factors of 31109

List of positive integer factors of 31109 that divides 31109 without a remainder.

1, 13, 2393

Step-4: Factors of 31122

List of positive integer factors of 31122 that divides 31109 without a remainder.

1, 2, 3, 6, 7, 9, 13, 14, 18, 19, 21, 26, 38, 39, 42, 57, 63, 78, 91, 114, 117, 126, 133, 171, 182, 234, 247, 266, 273, 342, 399, 494, 546, 741, 798, 819, 1197, 1482, 1638, 1729, 2223, 2394, 3458, 4446, 5187, 10374, 15561

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 31109 and 31122. The biggest common factor number is the GCF number.
So the greatest common factor 31109 and 31122 is 13.

Also check out the Least Common Multiple of 31109 and 31122