What is the Greatest Common Factor of 30172 and 30191?

Greatest common factor (GCF) of 30172 and 30191 is 19.

GCF(30172,30191) = 19

We will now calculate the prime factors of 30172 and 30191, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30172 and 30191.

How to find the GCF of 30172 and 30191?

We will first find the prime factorization of 30172 and 30191. After we will calculate the factors of 30172 and 30191 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 30191

Prime factors of 30191 are 7, 19, 227. Prime factorization of 30191 in exponential form is:

30191 = 7¹ × 19¹ × 227¹

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 30191

List of positive integer factors of 30191 that divides 30172 without a remainder.

1, 7, 19, 133, 227, 1589, 4313

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 30172 and 30191. The biggest common factor number is the GCF number.
So the greatest common factor 30172 and 30191 is 19.

Also check out the Least Common Multiple of 30172 and 30191