What is the Greatest Common Factor of 1854 and 1858?

Greatest common factor (GCF) of 1854 and 1858 is 2.

GCF(1854,1858) = 2

We will now calculate the prime factors of 1854 and 1858, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1854 and 1858.

How to find the GCF of 1854 and 1858?

We will first find the prime factorization of 1854 and 1858. After we will calculate the factors of 1854 and 1858 and find the biggest common factor number .

Step-1: Prime Factorization of 1854

Prime factors of 1854 are 2, 3, 103. Prime factorization of 1854 in exponential form is:

1854 = 2¹ × 3² × 103¹

Step-2: Prime Factorization of 1858

Prime factors of 1858 are 2, 929. Prime factorization of 1858 in exponential form is:

1858 = 2¹ × 929¹

Step-3: Factors of 1854

List of positive integer factors of 1854 that divides 1854 without a remainder.

1, 2, 3, 6, 9, 18, 103, 206, 309, 618, 927

Step-4: Factors of 1858

List of positive integer factors of 1858 that divides 1854 without a remainder.

1, 2, 929

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1854 and 1858. The biggest common factor number is the GCF number.
So the greatest common factor 1854 and 1858 is 2.

Also check out the Least Common Multiple of 1854 and 1858