What is the Greatest Common Factor of 30172 and 30186?

Greatest common factor (GCF) of 30172 and 30186 is 2.

GCF(30172,30186) = 2

We will now calculate the prime factors of 30172 and 30186, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30172 and 30186.

How to find the GCF of 30172 and 30186?

We will first find the prime factorization of 30172 and 30186. After we will calculate the factors of 30172 and 30186 and find the biggest common factor number .

Step-1: Prime Factorization of 30172

Prime factors of 30172 are 2, 19, 397. Prime factorization of 30172 in exponential form is:

30172 = 2² × 19¹ × 397¹

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 30172

List of positive integer factors of 30172 that divides 30172 without a remainder.

1, 2, 4, 19, 38, 76, 397, 794, 1588, 7543, 15086

Step-4: Factors of 30186

List of positive integer factors of 30186 that divides 30172 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 30172 and 30186. The biggest common factor number is the GCF number.
So the greatest common factor 30172 and 30186 is 2.

Also check out the Least Common Multiple of 30172 and 30186