What is the Greatest Common Factor of 30173 and 30186?

Greatest common factor (GCF) of 30173 and 30186 is 13.

GCF(30173,30186) = 13

We will now calculate the prime factors of 30173 and 30186, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30173 and 30186.

How to find the GCF of 30173 and 30186?

We will first find the prime factorization of 30173 and 30186. After we will calculate the factors of 30173 and 30186 and find the biggest common factor number .

Step-1: Prime Factorization of 30173

Prime factors of 30173 are 11, 13, 211. Prime factorization of 30173 in exponential form is:

30173 = 11¹ × 13¹ × 211¹

Step-2: Prime Factorization of 30186

Prime factors of 30186 are 2, 3, 13, 43. Prime factorization of 30186 in exponential form is:

30186 = 2¹ × 3³ × 13¹ × 43¹

Step-3: Factors of 30173

List of positive integer factors of 30173 that divides 30173 without a remainder.

1, 11, 13, 143, 211, 2321, 2743

Step-4: Factors of 30186

List of positive integer factors of 30186 that divides 30173 without a remainder.

1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 43, 54, 78, 86, 117, 129, 234, 258, 351, 387, 559, 702, 774, 1118, 1161, 1677, 2322, 3354, 5031, 10062, 15093

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 30173 and 30186. The biggest common factor number is the GCF number.
So the greatest common factor 30173 and 30186 is 13.

Also check out the Least Common Multiple of 30173 and 30186