What is the Greatest Common Factor of 30780 and 30791?

Greatest common factor (GCF) of 30780 and 30791 is 1.

GCF(30780,30791) = 1

We will now calculate the prime factors of 30780 and 30791, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30780 and 30791.

How to find the GCF of 30780 and 30791?

We will first find the prime factorization of 30780 and 30791. After we will calculate the factors of 30780 and 30791 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 30791

Prime factors of 30791 are 41, 751. Prime factorization of 30791 in exponential form is:

30791 = 41¹ × 751¹

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 30791

List of positive integer factors of 30791 that divides 30780 without a remainder.

1, 41, 751

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 30780 and 30791. The biggest common factor number is the GCF number.
So the greatest common factor 30780 and 30791 is 1.

Also check out the Least Common Multiple of 30780 and 30791