Greatest Common Factor of 7215 and 7220

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 7215, 7220 i.e. 5 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 7215 and 7220 is 5.

GCF(7215,7220) = 5

GCF of 7215 and 7220

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

GCF of:
and

Greatest Common Factor of 7215 and 7220

GCF of 7215 and 7220 is 5

Prime Factorization of 7215


3 7215
5 2405
13 481
37 37
1

Prime factors of 7215 are 3,5,13,37. Prime factorization of 7215 in exponential form is:

7215 = 31×51×131×371

Prime Factorization of 7220


2 7220
2 3610
5 1805
19 361
19 19
1

Prime factors of 7220 are 2,5,19. Prime factorization of 7220 in exponential form is:

7220 = 22×51×192

∴ So by taking common prime factors GCF of 7215 and 7220 is 5

Greatest Common Factor of 7215 and 7220 by matching factors method

Factors of 7215

List of positive integer factors of 7215 that divides 7215 without a remainder.

1,3,5,13,15,37,39,65,111,185,195,481,555,1443,2405,7215

Factors of 7220

List of positive integer factors of 7220 that divides 7220 without a remainder.

1,2,4,5,10,19,20,38,76,95,190,361,380,722,1444,1805,3610,7220

Greatest Common Factor

We found the factors and prime factorization of 7215 and 7220. The biggest common factor number is the GCF number.
So the greatest common factor 7215 and 7220 is 5.

Also check out the Least Common Multiple of 7215 and 7220

Properties of GCF 7215 and 7220

(i) The GCF of 7215 and 7220 is associative

GCF of 7215 and 7220 = GCF of 7220 and 7215

Related Greatest Common Factor of 7215

Related Greatest Common Factor of 7220

Frequently Asked Questions on GCF of 7215 and 7220

1. What is the GCF of 7215 and 7220?

Answer: GCF of 7215 and 7220 is 5.

2. What are the Factors of 7215?

Answer: Factors of 7215 are 1, 3, 5, 13, 15, 37, 39, 65, 111, 185, 195, 481, 555, 1443, 2405, 7215. There are 16 integers that are factors of 7215. The greatest factor of 7215 is 7215.

3. What are the Factors of 7220?

Answer: Factors of 7220 are 1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 3610, 7220. There are 18 integers that are factors of 7220. The greatest factor of 7220 is 7220.

4. How to Find the GCF of 7215 and 7220?

Answer:

Greatest Common Factor of 7215 and 7220 = 5

Step 1: Find the prime factorization of 7215

7215 = 3 x 5 x 13 x 37

Step 2: Find the prime factorization of 7220

7220 = 2 x 2 x 5 x 19 x 19

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

GCF = 5

Step 4: Therefore, the greatest common factor of 7215 and 7220 is 5