What is the Greatest Common Factor of 20385 and 20394?

Greatest common factor (GCF) of 20385 and 20394 is 9.

GCF(20385,20394) = 9

We will now calculate the prime factors of 20385 and 20394, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 20385 and 20394.

How to find the GCF of 20385 and 20394?

We will first find the prime factorization of 20385 and 20394. After we will calculate the factors of 20385 and 20394 and find the biggest common factor number .

Step-1: Prime Factorization of 20385

Prime factors of 20385 are 3, 5, 151. Prime factorization of 20385 in exponential form is:

20385 = 3³ × 5¹ × 151¹

Step-2: Prime Factorization of 20394

Prime factors of 20394 are 2, 3, 11, 103. Prime factorization of 20394 in exponential form is:

20394 = 2¹ × 3² × 11¹ × 103¹

Step-3: Factors of 20385

List of positive integer factors of 20385 that divides 20385 without a remainder.

1, 3, 5, 9, 15, 27, 45, 135, 151, 453, 755, 1359, 2265, 4077, 6795

Step-4: Factors of 20394

List of positive integer factors of 20394 that divides 20385 without a remainder.

1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 103, 198, 206, 309, 618, 927, 1133, 1854, 2266, 3399, 6798, 10197

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 20385 and 20394. The biggest common factor number is the GCF number.
So the greatest common factor 20385 and 20394 is 9.

Also check out the Least Common Multiple of 20385 and 20394