What is the Greatest Common Factor of 42858 and 42876?

Greatest common factor (GCF) of 42858 and 42876 is 18.

GCF(42858,42876) = 18

We will now calculate the prime factors of 42858 and 42876, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42858 and 42876.

How to find the GCF of 42858 and 42876?

We will first find the prime factorization of 42858 and 42876. After we will calculate the factors of 42858 and 42876 and find the biggest common factor number .

Step-1: Prime Factorization of 42858

Prime factors of 42858 are 2, 3, 2381. Prime factorization of 42858 in exponential form is:

42858 = 2¹ × 3² × 2381¹

Step-2: Prime Factorization of 42876

Prime factors of 42876 are 2, 3, 397. Prime factorization of 42876 in exponential form is:

42876 = 2² × 3³ × 397¹

Step-3: Factors of 42858

List of positive integer factors of 42858 that divides 42858 without a remainder.

1, 2, 3, 6, 9, 18, 2381, 4762, 7143, 14286, 21429

Step-4: Factors of 42876

List of positive integer factors of 42876 that divides 42858 without a remainder.

1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 397, 794, 1191, 1588, 2382, 3573, 4764, 7146, 10719, 14292, 21438

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42858 and 42876. The biggest common factor number is the GCF number.
So the greatest common factor 42858 and 42876 is 18.

Also check out the Least Common Multiple of 42858 and 42876