What is the Greatest Common Factor of 2355 and 2370?

Greatest common factor (GCF) of 2355 and 2370 is 15.

GCF(2355,2370) = 15

We will now calculate the prime factors of 2355 and 2370, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 2355 and 2370.

How to find the GCF of 2355 and 2370?

We will first find the prime factorization of 2355 and 2370. After we will calculate the factors of 2355 and 2370 and find the biggest common factor number .

Step-1: Prime Factorization of 2355

Prime factors of 2355 are 3, 5, 157. Prime factorization of 2355 in exponential form is:

2355 = 3¹ × 5¹ × 157¹

Step-2: Prime Factorization of 2370

Prime factors of 2370 are 2, 3, 5, 79. Prime factorization of 2370 in exponential form is:

2370 = 2¹ × 3¹ × 5¹ × 79¹

Step-3: Factors of 2355

List of positive integer factors of 2355 that divides 2355 without a remainder.

1, 3, 5, 15, 157, 471, 785

Step-4: Factors of 2370

List of positive integer factors of 2370 that divides 2355 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 79, 158, 237, 395, 474, 790, 1185

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 2355 and 2370. The biggest common factor number is the GCF number.
So the greatest common factor 2355 and 2370 is 15.

Also check out the Least Common Multiple of 2355 and 2370