Greatest Common Factor of 315 and 318

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

Make use of GCF Calculator to quickly find the Greatest Common Factor of numbers 315, 318 i.e. 3 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 315 and 318 is 3.

GCF(315,318) = 3

GCF of 315 and 318

Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;

GCF of:
and

Greatest Common Factor of 315 and 318

GCF of 315 and 318 is 3

Prime Factorization of 315


3 315
3 105
5 35
7 7
1

Prime factors of 315 are 3,5,7. Prime factorization of 315 in exponential form is:

315 = 32×51×71

Prime Factorization of 318


2 318
3 159
53 53
1

Prime factors of 318 are 2,3,53. Prime factorization of 318 in exponential form is:

318 = 21×31×531

∴ So by taking common prime factors GCF of 315 and 318 is 3

Greatest Common Factor of 315 and 318 by matching factors method

Factors of 315

List of positive integer factors of 315 that divides 315 without a remainder.

1,3,5,7,9,15,21,35,45,63,105,315

Factors of 318

List of positive integer factors of 318 that divides 318 without a remainder.

1,2,3,6,53,106,159,318

Greatest Common Factor

We found the factors and prime factorization of 315 and 318. The biggest common factor number is the GCF number.
So the greatest common factor 315 and 318 is 3.

Also check out the Least Common Multiple of 315 and 318

Properties of GCF 315 and 318

(i) The GCF of 315 and 318 is associative

GCF of 315 and 318 = GCF of 318 and 315

Related Greatest Common Factor of 315

Related Greatest Common Factor of 318

Frequently Asked Questions on GCF of 315 and 318

1. What is the GCF of 315 and 318?

Answer: GCF of 315 and 318 is 3.

2. What are the Factors of 315?

Answer: Factors of 315 are 1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315. There are 12 integers that are factors of 315. The greatest factor of 315 is 315.

3. What are the Factors of 318?

Answer: Factors of 318 are 1, 2, 3, 6, 53, 106, 159, 318. There are 8 integers that are factors of 318. The greatest factor of 318 is 318.

4. How to Find the GCF of 315 and 318?

Answer:

Greatest Common Factor of 315 and 318 = 3

Step 1: Find the prime factorization of 315

315 = 3 x 3 x 5 x 7

Step 2: Find the prime factorization of 318

318 = 2 x 3 x 53

Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:

GCF = 3

Step 4: Therefore, the greatest common factor of 315 and 318 is 3