What is the Greatest Common Factor of 38781 and 38787?

Greatest common factor (GCF) of 38781 and 38787 is 3.

GCF(38781,38787) = 3

We will now calculate the prime factors of 38781 and 38787, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 38781 and 38787.

How to find the GCF of 38781 and 38787?

We will first find the prime factorization of 38781 and 38787. After we will calculate the factors of 38781 and 38787 and find the biggest common factor number .

Step-1: Prime Factorization of 38781

Prime factors of 38781 are 3, 31, 139. Prime factorization of 38781 in exponential form is:

38781 = 3² × 31¹ × 139¹

Step-2: Prime Factorization of 38787

Prime factors of 38787 are 3, 7, 1847. Prime factorization of 38787 in exponential form is:

38787 = 3¹ × 7¹ × 1847¹

Step-3: Factors of 38781

List of positive integer factors of 38781 that divides 38781 without a remainder.

1, 3, 9, 31, 93, 139, 279, 417, 1251, 4309, 12927

Step-4: Factors of 38787

List of positive integer factors of 38787 that divides 38781 without a remainder.

1, 3, 7, 21, 1847, 5541, 12929

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 38781 and 38787. The biggest common factor number is the GCF number.
So the greatest common factor 38781 and 38787 is 3.

Also check out the Least Common Multiple of 38781 and 38787