What is the Greatest Common Factor of 15886 and 15890?

Greatest common factor (GCF) of 15886 and 15890 is 2.

GCF(15886,15890) = 2

We will now calculate the prime factors of 15886 and 15890, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15886 and 15890.

How to find the GCF of 15886 and 15890?

We will first find the prime factorization of 15886 and 15890. After we will calculate the factors of 15886 and 15890 and find the biggest common factor number .

Step-1: Prime Factorization of 15886

Prime factors of 15886 are 2, 13, 47. Prime factorization of 15886 in exponential form is:

15886 = 2¹ × 13² × 47¹

Step-2: Prime Factorization of 15890

Prime factors of 15890 are 2, 5, 7, 227. Prime factorization of 15890 in exponential form is:

15890 = 2¹ × 5¹ × 7¹ × 227¹

Step-3: Factors of 15886

List of positive integer factors of 15886 that divides 15886 without a remainder.

1, 2, 13, 26, 47, 94, 169, 338, 611, 1222, 7943

Step-4: Factors of 15890

List of positive integer factors of 15890 that divides 15886 without a remainder.

1, 2, 5, 7, 10, 14, 35, 70, 227, 454, 1135, 1589, 2270, 3178, 7945

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15886 and 15890. The biggest common factor number is the GCF number.
So the greatest common factor 15886 and 15890 is 2.

Also check out the Least Common Multiple of 15886 and 15890