What is the Greatest Common Factor of 30780 and 30786?

Greatest common factor (GCF) of 30780 and 30786 is 6.

GCF(30780,30786) = 6

We will now calculate the prime factors of 30780 and 30786, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30780 and 30786.

How to find the GCF of 30780 and 30786?

We will first find the prime factorization of 30780 and 30786. After we will calculate the factors of 30780 and 30786 and find the biggest common factor number .

Step-1: Prime Factorization of 30780

Prime factors of 30780 are 2, 3, 5, 19. Prime factorization of 30780 in exponential form is:

30780 = 2² × 3⁴ × 5¹ × 19¹

Step-2: Prime Factorization of 30786

Prime factors of 30786 are 2, 3, 7, 733. Prime factorization of 30786 in exponential form is:

30786 = 2¹ × 3¹ × 7¹ × 733¹

Step-3: Factors of 30780

List of positive integer factors of 30780 that divides 30780 without a remainder.

1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 81, 90, 95, 108, 114, 135, 162, 171, 180, 190, 228, 270, 285, 324, 342, 380, 405, 513, 540, 570, 684, 810, 855, 1026, 1140, 1539, 1620, 1710, 2052, 2565, 3078, 3420, 5130, 6156, 7695, 10260, 15390

Step-4: Factors of 30786

List of positive integer factors of 30786 that divides 30780 without a remainder.

1, 2, 3, 6, 7, 14, 21, 42, 733, 1466, 2199, 4398, 5131, 10262, 15393

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 30780 and 30786. The biggest common factor number is the GCF number.
So the greatest common factor 30780 and 30786 is 6.

Also check out the Least Common Multiple of 30780 and 30786