What is the Greatest Common Factor of 31275 and 31281?

Greatest common factor (GCF) of 31275 and 31281 is 3.

GCF(31275,31281) = 3

We will now calculate the prime factors of 31275 and 31281, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 31275 and 31281.

How to find the GCF of 31275 and 31281?

We will first find the prime factorization of 31275 and 31281. After we will calculate the factors of 31275 and 31281 and find the biggest common factor number .

Step-1: Prime Factorization of 31275

Prime factors of 31275 are 3, 5, 139. Prime factorization of 31275 in exponential form is:

31275 = 3² × 5² × 139¹

Step-2: Prime Factorization of 31281

Prime factors of 31281 are 3, 10427. Prime factorization of 31281 in exponential form is:

31281 = 3¹ × 10427¹

Step-3: Factors of 31275

List of positive integer factors of 31275 that divides 31275 without a remainder.

1, 3, 5, 9, 15, 25, 45, 75, 139, 225, 417, 695, 1251, 2085, 3475, 6255, 10425

Step-4: Factors of 31281

List of positive integer factors of 31281 that divides 31275 without a remainder.

1, 3, 10427

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 31275 and 31281. The biggest common factor number is the GCF number.
So the greatest common factor 31275 and 31281 is 3.

Also check out the Least Common Multiple of 31275 and 31281