What is the Greatest Common Factor of 20001 and 20019?

Greatest common factor (GCF) of 20001 and 20019 is 3.

GCF(20001,20019) = 3

We will now calculate the prime factors of 20001 and 20019, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 20001 and 20019.

How to find the GCF of 20001 and 20019?

We will first find the prime factorization of 20001 and 20019. After we will calculate the factors of 20001 and 20019 and find the biggest common factor number .

Step-1: Prime Factorization of 20001

Prime factors of 20001 are 3, 59, 113. Prime factorization of 20001 in exponential form is:

20001 = 3¹ × 59¹ × 113¹

Step-2: Prime Factorization of 20019

Prime factors of 20019 are 3, 6673. Prime factorization of 20019 in exponential form is:

20019 = 3¹ × 6673¹

Step-3: Factors of 20001

List of positive integer factors of 20001 that divides 20001 without a remainder.

1, 3, 59, 113, 177, 339, 6667

Step-4: Factors of 20019

List of positive integer factors of 20019 that divides 20001 without a remainder.

1, 3, 6673

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 20001 and 20019. The biggest common factor number is the GCF number.
So the greatest common factor 20001 and 20019 is 3.

Also check out the Least Common Multiple of 20001 and 20019