What is the Greatest Common Factor of 20078 and 20086?

Greatest common factor (GCF) of 20078 and 20086 is 2.

GCF(20078,20086) = 2

We will now calculate the prime factors of 20078 and 20086, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 20078 and 20086.

How to find the GCF of 20078 and 20086?

We will first find the prime factorization of 20078 and 20086. After we will calculate the factors of 20078 and 20086 and find the biggest common factor number .

Step-1: Prime Factorization of 20078

Prime factors of 20078 are 2, 10039. Prime factorization of 20078 in exponential form is:

20078 = 2¹ × 10039¹

Step-2: Prime Factorization of 20086

Prime factors of 20086 are 2, 11, 83. Prime factorization of 20086 in exponential form is:

20086 = 2¹ × 11² × 83¹

Step-3: Factors of 20078

List of positive integer factors of 20078 that divides 20078 without a remainder.

1, 2, 10039

Step-4: Factors of 20086

List of positive integer factors of 20086 that divides 20078 without a remainder.

1, 2, 11, 22, 83, 121, 166, 242, 913, 1826, 10043

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 20078 and 20086. The biggest common factor number is the GCF number.
So the greatest common factor 20078 and 20086 is 2.

Also check out the Least Common Multiple of 20078 and 20086