What is the Greatest Common Factor of 20078 and 20091?

Greatest common factor (GCF) of 20078 and 20091 is 1.

GCF(20078,20091) = 1

We will now calculate the prime factors of 20078 and 20091, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 20078 and 20091.

How to find the GCF of 20078 and 20091?

We will first find the prime factorization of 20078 and 20091. After we will calculate the factors of 20078 and 20091 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 20091

Prime factors of 20091 are 3, 37, 181. Prime factorization of 20091 in exponential form is:

20091 = 3¹ × 37¹ × 181¹

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 20091

List of positive integer factors of 20091 that divides 20078 without a remainder.

1, 3, 37, 111, 181, 543, 6697

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 20078 and 20091. The biggest common factor number is the GCF number.
So the greatest common factor 20078 and 20091 is 1.

Also check out the Least Common Multiple of 20078 and 20091