What is the Greatest Common Factor of 19158 and 19173?

Greatest common factor (GCF) of 19158 and 19173 is 3.

GCF(19158,19173) = 3

We will now calculate the prime factors of 19158 and 19173, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 19158 and 19173.

How to find the GCF of 19158 and 19173?

We will first find the prime factorization of 19158 and 19173. After we will calculate the factors of 19158 and 19173 and find the biggest common factor number .

Step-1: Prime Factorization of 19158

Prime factors of 19158 are 2, 3, 31, 103. Prime factorization of 19158 in exponential form is:

19158 = 2¹ × 3¹ × 31¹ × 103¹

Step-2: Prime Factorization of 19173

Prime factors of 19173 are 3, 7, 11, 83. Prime factorization of 19173 in exponential form is:

19173 = 3¹ × 7¹ × 11¹ × 83¹

Step-3: Factors of 19158

List of positive integer factors of 19158 that divides 19158 without a remainder.

1, 2, 3, 6, 31, 62, 93, 103, 186, 206, 309, 618, 3193, 6386, 9579

Step-4: Factors of 19173

List of positive integer factors of 19173 that divides 19158 without a remainder.

1, 3, 7, 11, 21, 33, 77, 83, 231, 249, 581, 913, 1743, 2739, 6391

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 19158 and 19173. The biggest common factor number is the GCF number.
So the greatest common factor 19158 and 19173 is 3.

Also check out the Least Common Multiple of 19158 and 19173