What is the Greatest Common Factor of 20658 and 20671?

Greatest common factor (GCF) of 20658 and 20671 is 1.

GCF(20658,20671) = 1

We will now calculate the prime factors of 20658 and 20671, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 20658 and 20671.

How to find the GCF of 20658 and 20671?

We will first find the prime factorization of 20658 and 20671. After we will calculate the factors of 20658 and 20671 and find the biggest common factor number .

Step-1: Prime Factorization of 20658

Prime factors of 20658 are 2, 3, 11, 313. Prime factorization of 20658 in exponential form is:

20658 = 2¹ × 3¹ × 11¹ × 313¹

Step-2: Prime Factorization of 20671

Prime factors of 20671 are 7, 2953. Prime factorization of 20671 in exponential form is:

20671 = 7¹ × 2953¹

Step-3: Factors of 20658

List of positive integer factors of 20658 that divides 20658 without a remainder.

1, 2, 3, 6, 11, 22, 33, 66, 313, 626, 939, 1878, 3443, 6886, 10329

Step-4: Factors of 20671

List of positive integer factors of 20671 that divides 20658 without a remainder.

1, 7, 2953

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 20658 and 20671. The biggest common factor number is the GCF number.
So the greatest common factor 20658 and 20671 is 1.

Also check out the Least Common Multiple of 20658 and 20671