What is the Greatest Common Factor of 16857 and 16861?

Greatest common factor (GCF) of 16857 and 16861 is 1.

GCF(16857,16861) = 1

We will now calculate the prime factors of 16857 and 16861, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 16857 and 16861.

How to find the GCF of 16857 and 16861?

We will first find the prime factorization of 16857 and 16861. After we will calculate the factors of 16857 and 16861 and find the biggest common factor number .

Step-1: Prime Factorization of 16857

Prime factors of 16857 are 3, 1873. Prime factorization of 16857 in exponential form is:

16857 = 3² × 1873¹

Step-2: Prime Factorization of 16861

Prime factors of 16861 are 13, 1297. Prime factorization of 16861 in exponential form is:

16861 = 13¹ × 1297¹

Step-3: Factors of 16857

List of positive integer factors of 16857 that divides 16857 without a remainder.

1, 3, 9, 1873, 5619

Step-4: Factors of 16861

List of positive integer factors of 16861 that divides 16857 without a remainder.

1, 13, 1297

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 16857 and 16861. The biggest common factor number is the GCF number.
So the greatest common factor 16857 and 16861 is 1.

Also check out the Least Common Multiple of 16857 and 16861