What is the Greatest Common Factor of 3878 and 3890?

Greatest common factor (GCF) of 3878 and 3890 is 2.

GCF(3878,3890) = 2

We will now calculate the prime factors of 3878 and 3890, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 3878 and 3890.

How to find the GCF of 3878 and 3890?

We will first find the prime factorization of 3878 and 3890. After we will calculate the factors of 3878 and 3890 and find the biggest common factor number .

Step-1: Prime Factorization of 3878

Prime factors of 3878 are 2, 7, 277. Prime factorization of 3878 in exponential form is:

3878 = 2¹ × 7¹ × 277¹

Step-2: Prime Factorization of 3890

Prime factors of 3890 are 2, 5, 389. Prime factorization of 3890 in exponential form is:

3890 = 2¹ × 5¹ × 389¹

Step-3: Factors of 3878

List of positive integer factors of 3878 that divides 3878 without a remainder.

1, 2, 7, 14, 277, 554, 1939

Step-4: Factors of 3890

List of positive integer factors of 3890 that divides 3878 without a remainder.

1, 2, 5, 10, 389, 778, 1945

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 3878 and 3890. The biggest common factor number is the GCF number.
So the greatest common factor 3878 and 3890 is 2.

Also check out the Least Common Multiple of 3878 and 3890