What is the Greatest Common Factor of 31870 and 31875?

Greatest common factor (GCF) of 31870 and 31875 is 5.

GCF(31870,31875) = 5

We will now calculate the prime factors of 31870 and 31875, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 31870 and 31875.

How to find the GCF of 31870 and 31875?

We will first find the prime factorization of 31870 and 31875. After we will calculate the factors of 31870 and 31875 and find the biggest common factor number .

Step-1: 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-2: Prime Factorization of 31875

Prime factors of 31875 are 3, 5, 17. Prime factorization of 31875 in exponential form is:

31875 = 3¹ × 5⁴ × 17¹

Step-3: Factors of 31870

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

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

Step-4: Factors of 31875

List of positive integer factors of 31875 that divides 31870 without a remainder.

1, 3, 5, 15, 17, 25, 51, 75, 85, 125, 255, 375, 425, 625, 1275, 1875, 2125, 6375, 10625

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 31870 and 31875. The biggest common factor number is the GCF number.
So the greatest common factor 31870 and 31875 is 5.

Also check out the Least Common Multiple of 31870 and 31875