What is the Greatest Common Factor of 42885 and 42891?

Greatest common factor (GCF) of 42885 and 42891 is 3.

GCF(42885,42891) = 3

We will now calculate the prime factors of 42885 and 42891, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42885 and 42891.

How to find the GCF of 42885 and 42891?

We will first find the prime factorization of 42885 and 42891. After we will calculate the factors of 42885 and 42891 and find the biggest common factor number .

Step-1: Prime Factorization of 42885

Prime factors of 42885 are 3, 5, 953. Prime factorization of 42885 in exponential form is:

42885 = 3² × 5¹ × 953¹

Step-2: Prime Factorization of 42891

Prime factors of 42891 are 3, 17, 29. Prime factorization of 42891 in exponential form is:

42891 = 3¹ × 17¹ × 29²

Step-3: Factors of 42885

List of positive integer factors of 42885 that divides 42885 without a remainder.

1, 3, 5, 9, 15, 45, 953, 2859, 4765, 8577, 14295

Step-4: Factors of 42891

List of positive integer factors of 42891 that divides 42885 without a remainder.

1, 3, 17, 29, 51, 87, 493, 841, 1479, 2523, 14297

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42885 and 42891. The biggest common factor number is the GCF number.
So the greatest common factor 42885 and 42891 is 3.

Also check out the Least Common Multiple of 42885 and 42891