What is the Greatest Common Factor of 31145 and 31155?

Greatest common factor (GCF) of 31145 and 31155 is 5.

GCF(31145,31155) = 5

We will now calculate the prime factors of 31145 and 31155, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 31145 and 31155.

How to find the GCF of 31145 and 31155?

We will first find the prime factorization of 31145 and 31155. After we will calculate the factors of 31145 and 31155 and find the biggest common factor number .

Step-1: Prime Factorization of 31145

Prime factors of 31145 are 5, 6229. Prime factorization of 31145 in exponential form is:

31145 = 5¹ × 6229¹

Step-2: Prime Factorization of 31155

Prime factors of 31155 are 3, 5, 31, 67. Prime factorization of 31155 in exponential form is:

31155 = 3¹ × 5¹ × 31¹ × 67¹

Step-3: Factors of 31145

List of positive integer factors of 31145 that divides 31145 without a remainder.

1, 5, 6229

Step-4: Factors of 31155

List of positive integer factors of 31155 that divides 31145 without a remainder.

1, 3, 5, 15, 31, 67, 93, 155, 201, 335, 465, 1005, 2077, 6231, 10385

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 31145 and 31155. The biggest common factor number is the GCF number.
So the greatest common factor 31145 and 31155 is 5.

Also check out the Least Common Multiple of 31145 and 31155