What is the Greatest Common Factor of 10385 and 10400?

Greatest common factor (GCF) of 10385 and 10400 is 5.

GCF(10385,10400) = 5

We will now calculate the prime factors of 10385 and 10400, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 10385 and 10400.

How to find the GCF of 10385 and 10400?

We will first find the prime factorization of 10385 and 10400. After we will calculate the factors of 10385 and 10400 and find the biggest common factor number .

Step-1: Prime Factorization of 10385

Prime factors of 10385 are 5, 31, 67. Prime factorization of 10385 in exponential form is:

10385 = 5¹ × 31¹ × 67¹

Step-2: Prime Factorization of 10400

Prime factors of 10400 are 2, 5, 13. Prime factorization of 10400 in exponential form is:

10400 = 2⁵ × 5² × 13¹

Step-3: Factors of 10385

List of positive integer factors of 10385 that divides 10385 without a remainder.

1, 5, 31, 67, 155, 335, 2077

Step-4: Factors of 10400

List of positive integer factors of 10400 that divides 10385 without a remainder.

1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 130, 160, 200, 208, 260, 325, 400, 416, 520, 650, 800, 1040, 1300, 2080, 2600, 5200

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 10385 and 10400. The biggest common factor number is the GCF number.
So the greatest common factor 10385 and 10400 is 5.

Also check out the Least Common Multiple of 10385 and 10400