What is the Greatest Common Factor of 31902 and 31915?

Greatest common factor (GCF) of 31902 and 31915 is 13.

GCF(31902,31915) = 13

We will now calculate the prime factors of 31902 and 31915, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 31902 and 31915.

How to find the GCF of 31902 and 31915?

We will first find the prime factorization of 31902 and 31915. After we will calculate the factors of 31902 and 31915 and find the biggest common factor number .

Step-1: Prime Factorization of 31902

Prime factors of 31902 are 2, 3, 13, 409. Prime factorization of 31902 in exponential form is:

31902 = 2¹ × 3¹ × 13¹ × 409¹

Step-2: Prime Factorization of 31915

Prime factors of 31915 are 5, 13, 491. Prime factorization of 31915 in exponential form is:

31915 = 5¹ × 13¹ × 491¹

Step-3: Factors of 31902

List of positive integer factors of 31902 that divides 31902 without a remainder.

1, 2, 3, 6, 13, 26, 39, 78, 409, 818, 1227, 2454, 5317, 10634, 15951

Step-4: Factors of 31915

List of positive integer factors of 31915 that divides 31902 without a remainder.

1, 5, 13, 65, 491, 2455, 6383

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 31902 and 31915. The biggest common factor number is the GCF number.
So the greatest common factor 31902 and 31915 is 13.

Also check out the Least Common Multiple of 31902 and 31915