What is the Greatest Common Factor of 81130 and 81145?

Greatest common factor (GCF) of 81130 and 81145 is 5.

GCF(81130,81145) = 5

We will now calculate the prime factors of 81130 and 81145, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81130 and 81145.

How to find the GCF of 81130 and 81145?

We will first find the prime factorization of 81130 and 81145. After we will calculate the factors of 81130 and 81145 and find the biggest common factor number .

Step-1: Prime Factorization of 81130

Prime factors of 81130 are 2, 5, 7, 19, 61. Prime factorization of 81130 in exponential form is:

81130 = 2¹ × 5¹ × 7¹ × 19¹ × 61¹

Step-2: Prime Factorization of 81145

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

81145 = 5¹ × 16229¹

Step-3: Factors of 81130

List of positive integer factors of 81130 that divides 81130 without a remainder.

1, 2, 5, 7, 10, 14, 19, 35, 38, 61, 70, 95, 122, 133, 190, 266, 305, 427, 610, 665, 854, 1159, 1330, 2135, 2318, 4270, 5795, 8113, 11590, 16226, 40565

Step-4: Factors of 81145

List of positive integer factors of 81145 that divides 81130 without a remainder.

1, 5, 16229

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81130 and 81145. The biggest common factor number is the GCF number.
So the greatest common factor 81130 and 81145 is 5.

Also check out the Least Common Multiple of 81130 and 81145