What is the Greatest Common Factor of 7878 and 7890?

Greatest common factor (GCF) of 7878 and 7890 is 6.

GCF(7878,7890) = 6

We will now calculate the prime factors of 7878 and 7890, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7878 and 7890.

How to find the GCF of 7878 and 7890?

We will first find the prime factorization of 7878 and 7890. After we will calculate the factors of 7878 and 7890 and find the biggest common factor number .

Step-1: Prime Factorization of 7878

Prime factors of 7878 are 2, 3, 13, 101. Prime factorization of 7878 in exponential form is:

7878 = 2¹ × 3¹ × 13¹ × 101¹

Step-2: Prime Factorization of 7890

Prime factors of 7890 are 2, 3, 5, 263. Prime factorization of 7890 in exponential form is:

7890 = 2¹ × 3¹ × 5¹ × 263¹

Step-3: Factors of 7878

List of positive integer factors of 7878 that divides 7878 without a remainder.

1, 2, 3, 6, 13, 26, 39, 78, 101, 202, 303, 606, 1313, 2626, 3939

Step-4: Factors of 7890

List of positive integer factors of 7890 that divides 7878 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 263, 526, 789, 1315, 1578, 2630, 3945

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7878 and 7890. The biggest common factor number is the GCF number.
So the greatest common factor 7878 and 7890 is 6.

Also check out the Least Common Multiple of 7878 and 7890