What is the Greatest Common Factor of 1870 and 1878?

Greatest common factor (GCF) of 1870 and 1878 is 2.

GCF(1870,1878) = 2

We will now calculate the prime factors of 1870 and 1878, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1870 and 1878.

How to find the GCF of 1870 and 1878?

We will first find the prime factorization of 1870 and 1878. After we will calculate the factors of 1870 and 1878 and find the biggest common factor number .

Step-1: Prime Factorization of 1870

Prime factors of 1870 are 2, 5, 11, 17. Prime factorization of 1870 in exponential form is:

1870 = 2¹ × 5¹ × 11¹ × 17¹

Step-2: Prime Factorization of 1878

Prime factors of 1878 are 2, 3, 313. Prime factorization of 1878 in exponential form is:

1878 = 2¹ × 3¹ × 313¹

Step-3: Factors of 1870

List of positive integer factors of 1870 that divides 1870 without a remainder.

1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 374, 935

Step-4: Factors of 1878

List of positive integer factors of 1878 that divides 1870 without a remainder.

1, 2, 3, 6, 313, 626, 939

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1870 and 1878. The biggest common factor number is the GCF number.
So the greatest common factor 1870 and 1878 is 2.

Also check out the Least Common Multiple of 1870 and 1878