What is the Greatest Common Factor of 12840 and 12854?

Greatest common factor (GCF) of 12840 and 12854 is 2.

GCF(12840,12854) = 2

We will now calculate the prime factors of 12840 and 12854, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 12840 and 12854.

How to find the GCF of 12840 and 12854?

We will first find the prime factorization of 12840 and 12854. After we will calculate the factors of 12840 and 12854 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 12854

Prime factors of 12854 are 2, 6427. Prime factorization of 12854 in exponential form is:

12854 = 2¹ × 6427¹

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 12854

List of positive integer factors of 12854 that divides 12840 without a remainder.

1, 2, 6427

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 12840 and 12854. The biggest common factor number is the GCF number.
So the greatest common factor 12840 and 12854 is 2.

Also check out the Least Common Multiple of 12840 and 12854