What is the Greatest Common Factor of 31985 and 32000?

Greatest common factor (GCF) of 31985 and 32000 is 5.

GCF(31985,32000) = 5

We will now calculate the prime factors of 31985 and 32000, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 31985 and 32000.

How to find the GCF of 31985 and 32000?

We will first find the prime factorization of 31985 and 32000. After we will calculate the factors of 31985 and 32000 and find the biggest common factor number .

Step-1: Prime Factorization of 31985

Prime factors of 31985 are 5, 6397. Prime factorization of 31985 in exponential form is:

31985 = 5¹ × 6397¹

Step-2: Prime Factorization of 32000

Prime factors of 32000 are 2, 5. Prime factorization of 32000 in exponential form is:

32000 = 2⁸ × 5³

Step-3: Factors of 31985

List of positive integer factors of 31985 that divides 31985 without a remainder.

1, 5, 6397

Step-4: Factors of 32000

List of positive integer factors of 32000 that divides 31985 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 640, 800, 1000, 1280, 1600, 2000, 3200, 4000, 6400, 8000, 16000

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 31985 and 32000. The biggest common factor number is the GCF number.
So the greatest common factor 31985 and 32000 is 5.

Also check out the Least Common Multiple of 31985 and 32000