What is the Greatest Common Factor of 1854 and 1860?

Greatest common factor (GCF) of 1854 and 1860 is 6.

GCF(1854,1860) = 6

We will now calculate the prime factors of 1854 and 1860, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1854 and 1860.

How to find the GCF of 1854 and 1860?

We will first find the prime factorization of 1854 and 1860. After we will calculate the factors of 1854 and 1860 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 1860

Prime factors of 1860 are 2, 3, 5, 31. Prime factorization of 1860 in exponential form is:

1860 = 2² × 3¹ × 5¹ × 31¹

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 1860

List of positive integer factors of 1860 that divides 1854 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 465, 620, 930

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1854 and 1860. The biggest common factor number is the GCF number.
So the greatest common factor 1854 and 1860 is 6.

Also check out the Least Common Multiple of 1854 and 1860