What is the Greatest Common Factor of 2643 and 2658?

Greatest common factor (GCF) of 2643 and 2658 is 3.

GCF(2643,2658) = 3

We will now calculate the prime factors of 2643 and 2658, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 2643 and 2658.

How to find the GCF of 2643 and 2658?

We will first find the prime factorization of 2643 and 2658. After we will calculate the factors of 2643 and 2658 and find the biggest common factor number .

Step-1: Prime Factorization of 2643

Prime factors of 2643 are 3, 881. Prime factorization of 2643 in exponential form is:

2643 = 3¹ × 881¹

Step-2: Prime Factorization of 2658

Prime factors of 2658 are 2, 3, 443. Prime factorization of 2658 in exponential form is:

2658 = 2¹ × 3¹ × 443¹

Step-3: Factors of 2643

List of positive integer factors of 2643 that divides 2643 without a remainder.

1, 3, 881

Step-4: Factors of 2658

List of positive integer factors of 2658 that divides 2643 without a remainder.

1, 2, 3, 6, 443, 886, 1329

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 2643 and 2658. The biggest common factor number is the GCF number.
So the greatest common factor 2643 and 2658 is 3.

Also check out the Least Common Multiple of 2643 and 2658