What is the Greatest Common Factor of 19371 and 19380?

Greatest common factor (GCF) of 19371 and 19380 is 3.

GCF(19371,19380) = 3

We will now calculate the prime factors of 19371 and 19380, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 19371 and 19380.

How to find the GCF of 19371 and 19380?

We will first find the prime factorization of 19371 and 19380. After we will calculate the factors of 19371 and 19380 and find the biggest common factor number .

Step-1: Prime Factorization of 19371

Prime factors of 19371 are 3, 11, 587. Prime factorization of 19371 in exponential form is:

19371 = 3¹ × 11¹ × 587¹

Step-2: Prime Factorization of 19380

Prime factors of 19380 are 2, 3, 5, 17, 19. Prime factorization of 19380 in exponential form is:

19380 = 2² × 3¹ × 5¹ × 17¹ × 19¹

Step-3: Factors of 19371

List of positive integer factors of 19371 that divides 19371 without a remainder.

1, 3, 11, 33, 587, 1761, 6457

Step-4: Factors of 19380

List of positive integer factors of 19380 that divides 19371 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 19, 20, 30, 34, 38, 51, 57, 60, 68, 76, 85, 95, 102, 114, 170, 190, 204, 228, 255, 285, 323, 340, 380, 510, 570, 646, 969, 1020, 1140, 1292, 1615, 1938, 3230, 3876, 4845, 6460, 9690

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 19371 and 19380. The biggest common factor number is the GCF number.
So the greatest common factor 19371 and 19380 is 3.

Also check out the Least Common Multiple of 19371 and 19380