What is the Greatest Common Factor of 81145 and 81155?

Greatest common factor (GCF) of 81145 and 81155 is 5.

GCF(81145,81155) = 5

We will now calculate the prime factors of 81145 and 81155, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81145 and 81155.

How to find the GCF of 81145 and 81155?

We will first find the prime factorization of 81145 and 81155. After we will calculate the factors of 81145 and 81155 and find the biggest common factor number .

Step-1: Prime Factorization of 81145

Prime factors of 81145 are 5, 16229. Prime factorization of 81145 in exponential form is:

81145 = 5¹ × 16229¹

Step-2: Prime Factorization of 81155

Prime factors of 81155 are 5, 16231. Prime factorization of 81155 in exponential form is:

81155 = 5¹ × 16231¹

Step-3: Factors of 81145

List of positive integer factors of 81145 that divides 81145 without a remainder.

1, 5, 16229

Step-4: Factors of 81155

List of positive integer factors of 81155 that divides 81145 without a remainder.

1, 5, 16231

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81145 and 81155. The biggest common factor number is the GCF number.
So the greatest common factor 81145 and 81155 is 5.

Also check out the Least Common Multiple of 81145 and 81155