What is the Greatest Common Factor of 42878 and 42889?

Greatest common factor (GCF) of 42878 and 42889 is 11.

GCF(42878,42889) = 11

We will now calculate the prime factors of 42878 and 42889, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42878 and 42889.

How to find the GCF of 42878 and 42889?

We will first find the prime factorization of 42878 and 42889. After we will calculate the factors of 42878 and 42889 and find the biggest common factor number .

Step-1: Prime Factorization of 42878

Prime factors of 42878 are 2, 11, 1949. Prime factorization of 42878 in exponential form is:

42878 = 2¹ × 11¹ × 1949¹

Step-2: Prime Factorization of 42889

Prime factors of 42889 are 7, 11, 557. Prime factorization of 42889 in exponential form is:

42889 = 7¹ × 11¹ × 557¹

Step-3: Factors of 42878

List of positive integer factors of 42878 that divides 42878 without a remainder.

1, 2, 11, 22, 1949, 3898, 21439

Step-4: Factors of 42889

List of positive integer factors of 42889 that divides 42878 without a remainder.

1, 7, 11, 77, 557, 3899, 6127

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42878 and 42889. The biggest common factor number is the GCF number.
So the greatest common factor 42878 and 42889 is 11.

Also check out the Least Common Multiple of 42878 and 42889