What is the Greatest Common Factor of 42851 and 42857?

Greatest common factor (GCF) of 42851 and 42857 is 1.

GCF(42851,42857) = 1

We will now calculate the prime factors of 42851 and 42857, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42851 and 42857.

How to find the GCF of 42851 and 42857?

We will first find the prime factorization of 42851 and 42857. After we will calculate the factors of 42851 and 42857 and find the biggest common factor number .

Step-1: Prime Factorization of 42851

Prime factors of 42851 are 73, 587. Prime factorization of 42851 in exponential form is:

42851 = 73¹ × 587¹

Step-2: Prime Factorization of 42857

Prime factors of 42857 are 17, 2521. Prime factorization of 42857 in exponential form is:

42857 = 17¹ × 2521¹

Step-3: Factors of 42851

List of positive integer factors of 42851 that divides 42851 without a remainder.

1, 73, 587

Step-4: Factors of 42857

List of positive integer factors of 42857 that divides 42851 without a remainder.

1, 17, 2521

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42851 and 42857. The biggest common factor number is the GCF number.
So the greatest common factor 42851 and 42857 is 1.

Also check out the Least Common Multiple of 42851 and 42857