What is the Greatest Common Factor of 31856 and 31870?

Greatest common factor (GCF) of 31856 and 31870 is 2.

GCF(31856,31870) = 2

We will now calculate the prime factors of 31856 and 31870, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 31856 and 31870.

How to find the GCF of 31856 and 31870?

We will first find the prime factorization of 31856 and 31870. After we will calculate the factors of 31856 and 31870 and find the biggest common factor number .

Step-1: Prime Factorization of 31856

Prime factors of 31856 are 2, 11, 181. Prime factorization of 31856 in exponential form is:

31856 = 2⁴ × 11¹ × 181¹

Step-2: Prime Factorization of 31870

Prime factors of 31870 are 2, 5, 3187. Prime factorization of 31870 in exponential form is:

31870 = 2¹ × 5¹ × 3187¹

Step-3: Factors of 31856

List of positive integer factors of 31856 that divides 31856 without a remainder.

1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 181, 362, 724, 1448, 1991, 2896, 3982, 7964, 15928

Step-4: Factors of 31870

List of positive integer factors of 31870 that divides 31856 without a remainder.

1, 2, 5, 10, 3187, 6374, 15935

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 31856 and 31870. The biggest common factor number is the GCF number.
So the greatest common factor 31856 and 31870 is 2.

Also check out the Least Common Multiple of 31856 and 31870