What is the Greatest Common Factor of 38391 and 38400?

Greatest common factor (GCF) of 38391 and 38400 is 3.

GCF(38391,38400) = 3

We will now calculate the prime factors of 38391 and 38400, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 38391 and 38400.

How to find the GCF of 38391 and 38400?

We will first find the prime factorization of 38391 and 38400. After we will calculate the factors of 38391 and 38400 and find the biggest common factor number .

Step-1: Prime Factorization of 38391

Prime factors of 38391 are 3, 67, 191. Prime factorization of 38391 in exponential form is:

38391 = 3¹ × 67¹ × 191¹

Step-2: Prime Factorization of 38400

Prime factors of 38400 are 2, 3, 5. Prime factorization of 38400 in exponential form is:

38400 = 2⁹ × 3¹ × 5²

Step-3: Factors of 38391

List of positive integer factors of 38391 that divides 38391 without a remainder.

1, 3, 67, 191, 201, 573, 12797

Step-4: Factors of 38400

List of positive integer factors of 38400 that divides 38391 without a remainder.

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 75, 80, 96, 100, 120, 128, 150, 160, 192, 200, 240, 256, 300, 320, 384, 400, 480, 512, 600, 640, 768, 800, 960, 1200, 1280, 1536, 1600, 1920, 2400, 2560, 3200, 3840, 4800, 6400, 7680, 9600, 12800, 19200

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 38391 and 38400. The biggest common factor number is the GCF number.
So the greatest common factor 38391 and 38400 is 3.

Also check out the Least Common Multiple of 38391 and 38400