What is the Greatest Common Factor of 2106 and 2121?

Greatest common factor (GCF) of 2106 and 2121 is 3.

GCF(2106,2121) = 3

We will now calculate the prime factors of 2106 and 2121, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 2106 and 2121.

How to find the GCF of 2106 and 2121?

We will first find the prime factorization of 2106 and 2121. After we will calculate the factors of 2106 and 2121 and find the biggest common factor number .

Step-1: Prime Factorization of 2106

Prime factors of 2106 are 2, 3, 13. Prime factorization of 2106 in exponential form is:

2106 = 2¹ × 3⁴ × 13¹

Step-2: Prime Factorization of 2121

Prime factors of 2121 are 3, 7, 101. Prime factorization of 2121 in exponential form is:

2121 = 3¹ × 7¹ × 101¹

Step-3: Factors of 2106

List of positive integer factors of 2106 that divides 2106 without a remainder.

1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 117, 162, 234, 351, 702, 1053

Step-4: Factors of 2121

List of positive integer factors of 2121 that divides 2106 without a remainder.

1, 3, 7, 21, 101, 303, 707

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 2106 and 2121. The biggest common factor number is the GCF number.
So the greatest common factor 2106 and 2121 is 3.

Also check out the Least Common Multiple of 2106 and 2121