What is the Greatest Common Factor of 15390 and 15394?

Greatest common factor (GCF) of 15390 and 15394 is 2.

GCF(15390,15394) = 2

We will now calculate the prime factors of 15390 and 15394, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15390 and 15394.

How to find the GCF of 15390 and 15394?

We will first find the prime factorization of 15390 and 15394. After we will calculate the factors of 15390 and 15394 and find the biggest common factor number .

Step-1: Prime Factorization of 15390

Prime factors of 15390 are 2, 3, 5, 19. Prime factorization of 15390 in exponential form is:

15390 = 2¹ × 3⁴ × 5¹ × 19¹

Step-2: Prime Factorization of 15394

Prime factors of 15394 are 2, 43, 179. Prime factorization of 15394 in exponential form is:

15394 = 2¹ × 43¹ × 179¹

Step-3: Factors of 15390

List of positive integer factors of 15390 that divides 15390 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 38, 45, 54, 57, 81, 90, 95, 114, 135, 162, 171, 190, 270, 285, 342, 405, 513, 570, 810, 855, 1026, 1539, 1710, 2565, 3078, 5130, 7695

Step-4: Factors of 15394

List of positive integer factors of 15394 that divides 15390 without a remainder.

1, 2, 43, 86, 179, 358, 7697

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15390 and 15394. The biggest common factor number is the GCF number.
So the greatest common factor 15390 and 15394 is 2.

Also check out the Least Common Multiple of 15390 and 15394