What is the Greatest Common Factor of 39543 and 39555?

Greatest common factor (GCF) of 39543 and 39555 is 3.

GCF(39543,39555) = 3

We will now calculate the prime factors of 39543 and 39555, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 39543 and 39555.

How to find the GCF of 39543 and 39555?

We will first find the prime factorization of 39543 and 39555. After we will calculate the factors of 39543 and 39555 and find the biggest common factor number .

Step-1: Prime Factorization of 39543

Prime factors of 39543 are 3, 7, 269. Prime factorization of 39543 in exponential form is:

39543 = 3¹ × 7² × 269¹

Step-2: Prime Factorization of 39555

Prime factors of 39555 are 3, 5, 293. Prime factorization of 39555 in exponential form is:

39555 = 3³ × 5¹ × 293¹

Step-3: Factors of 39543

List of positive integer factors of 39543 that divides 39543 without a remainder.

1, 3, 7, 21, 49, 147, 269, 807, 1883, 5649, 13181

Step-4: Factors of 39555

List of positive integer factors of 39555 that divides 39543 without a remainder.

1, 3, 5, 9, 15, 27, 45, 135, 293, 879, 1465, 2637, 4395, 7911, 13185

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 39543 and 39555. The biggest common factor number is the GCF number.
So the greatest common factor 39543 and 39555 is 3.

Also check out the Least Common Multiple of 39543 and 39555