What is the Greatest Common Factor of 2115 and 2135?

Greatest common factor (GCF) of 2115 and 2135 is 5.

GCF(2115,2135) = 5

We will now calculate the prime factors of 2115 and 2135, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 2115 and 2135.

How to find the GCF of 2115 and 2135?

We will first find the prime factorization of 2115 and 2135. After we will calculate the factors of 2115 and 2135 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 2135

Prime factors of 2135 are 5, 7, 61. Prime factorization of 2135 in exponential form is:

2135 = 5¹ × 7¹ × 61¹

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 2135

List of positive integer factors of 2135 that divides 2115 without a remainder.

1, 5, 7, 35, 61, 305, 427

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 2115 and 2135. The biggest common factor number is the GCF number.
So the greatest common factor 2115 and 2135 is 5.

Also check out the Least Common Multiple of 2115 and 2135