What is the Greatest Common Factor of 13680 and 13685?

Greatest common factor (GCF) of 13680 and 13685 is 5.

GCF(13680,13685) = 5

We will now calculate the prime factors of 13680 and 13685, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 13680 and 13685.

How to find the GCF of 13680 and 13685?

We will first find the prime factorization of 13680 and 13685. After we will calculate the factors of 13680 and 13685 and find the biggest common factor number .

Step-1: Prime Factorization of 13680

Prime factors of 13680 are 2, 3, 5, 19. Prime factorization of 13680 in exponential form is:

13680 = 2⁴ × 3² × 5¹ × 19¹

Step-2: Prime Factorization of 13685

Prime factors of 13685 are 5, 7, 17, 23. Prime factorization of 13685 in exponential form is:

13685 = 5¹ × 7¹ × 17¹ × 23¹

Step-3: Factors of 13680

List of positive integer factors of 13680 that divides 13680 without a remainder.

1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 114, 120, 144, 152, 171, 180, 190, 228, 240, 285, 304, 342, 360, 380, 456, 570, 684, 720, 760, 855, 912, 1140, 1368, 1520, 1710, 2280, 2736, 3420, 4560, 6840

Step-4: Factors of 13685

List of positive integer factors of 13685 that divides 13680 without a remainder.

1, 5, 7, 17, 23, 35, 85, 115, 119, 161, 391, 595, 805, 1955, 2737

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 13680 and 13685. The biggest common factor number is the GCF number.
So the greatest common factor 13680 and 13685 is 5.

Also check out the Least Common Multiple of 13680 and 13685