What is the Greatest Common Factor of 12840 and 12850?

Greatest common factor (GCF) of 12840 and 12850 is 10.

GCF(12840,12850) = 10

We will now calculate the prime factors of 12840 and 12850, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 12840 and 12850.

How to find the GCF of 12840 and 12850?

We will first find the prime factorization of 12840 and 12850. After we will calculate the factors of 12840 and 12850 and find the biggest common factor number .

Step-1: Prime Factorization of 12840

Prime factors of 12840 are 2, 3, 5, 107. Prime factorization of 12840 in exponential form is:

12840 = 2³ × 3¹ × 5¹ × 107¹

Step-2: Prime Factorization of 12850

Prime factors of 12850 are 2, 5, 257. Prime factorization of 12850 in exponential form is:

12850 = 2¹ × 5² × 257¹

Step-3: Factors of 12840

List of positive integer factors of 12840 that divides 12840 without a remainder.

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 107, 120, 214, 321, 428, 535, 642, 856, 1070, 1284, 1605, 2140, 2568, 3210, 4280, 6420

Step-4: Factors of 12850

List of positive integer factors of 12850 that divides 12840 without a remainder.

1, 2, 5, 10, 25, 50, 257, 514, 1285, 2570, 6425

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 12840 and 12850. The biggest common factor number is the GCF number.
So the greatest common factor 12840 and 12850 is 10.

Also check out the Least Common Multiple of 12840 and 12850