Greatest Common Factor of 215 and 218

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 215, 218 i.e. 1 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 215 and 218 is 1.

GCF(215,218) = 1

GCF of 215 and 218

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

GCF of:
and

Greatest Common Factor of 215 and 218

GCF of 215 and 218 is 1

Prime Factorization of 215


5 215
43 43
1

Prime factors of 215 are 5,43. Prime factorization of 215 in exponential form is:

215 = 51×431

Prime Factorization of 218


2 218
109 109
1

Prime factors of 218 are 2,109. Prime factorization of 218 in exponential form is:

218 = 21×1091

∴ So by taking common prime factors GCF of 215 and 218 is 1

Greatest Common Factor of 215 and 218 by matching factors method

Factors of 215

List of positive integer factors of 215 that divides 215 without a remainder.

1,5,43,215

Factors of 218

List of positive integer factors of 218 that divides 218 without a remainder.

1,2,109,218

Greatest Common Factor

We found the factors and prime factorization of 215 and 218. The biggest common factor number is the GCF number.
So the greatest common factor 215 and 218 is 1.

Also check out the Least Common Multiple of 215 and 218

Properties of GCF 215 and 218

(i) The GCF of 215 and 218 is associative

GCF of 215 and 218 = GCF of 218 and 215

Related Greatest Common Factor of 215

Related Greatest Common Factor of 218

Frequently Asked Questions on GCF of 215 and 218

1. What is the GCF of 215 and 218?

Answer: GCF of 215 and 218 is 1.

2. What are the Factors of 215?

Answer: Factors of 215 are 1, 5, 43, 215. There are 4 integers that are factors of 215. The greatest factor of 215 is 215.

3. What are the Factors of 218?

Answer: Factors of 218 are 1, 2, 109, 218. There are 4 integers that are factors of 218. The greatest factor of 218 is 218.

4. How to Find the GCF of 215 and 218?

Answer:

Greatest Common Factor of 215 and 218 = 1

Step 1: Find the prime factorization of 215

215 = 5 x 43

Step 2: Find the prime factorization of 218

218 = 2 x 109

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

GCF = = 1

Step 4: Therefore, the greatest common factor of 215 and 218 is 1