What is the Greatest Common Factor of 2115 and 2123?

Greatest common factor (GCF) of 2115 and 2123 is 1.

GCF(2115,2123) = 1

We will now calculate the prime factors of 2115 and 2123, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 2115 and 2123.

How to find the GCF of 2115 and 2123?

We will first find the prime factorization of 2115 and 2123. After we will calculate the factors of 2115 and 2123 and find the biggest common factor number .

Step-1: Prime Factorization of 2115

Prime factors of 2115 are 3, 5, 47. Prime factorization of 2115 in exponential form is:

2115 = 3² × 5¹ × 47¹

Step-2: Prime Factorization of 2123

Prime factors of 2123 are 11, 193. Prime factorization of 2123 in exponential form is:

2123 = 11¹ × 193¹

Step-3: Factors of 2115

List of positive integer factors of 2115 that divides 2115 without a remainder.

1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705

Step-4: Factors of 2123

List of positive integer factors of 2123 that divides 2115 without a remainder.

1, 11, 193

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 2115 and 2123. The biggest common factor number is the GCF number.
So the greatest common factor 2115 and 2123 is 1.

Also check out the Least Common Multiple of 2115 and 2123