Greatest Common Factor of 2139 and 2145

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 2139, 2145 i.e. 3 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 2139 and 2145 is 3.

GCF(2139,2145) = 3

GCF of 2139 and 2145

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

GCF of:
and

Greatest Common Factor of 2139 and 2145

GCF of 2139 and 2145 is 3

Prime Factorization of 2139


3 2139
23 713
31 31
1

Prime factors of 2139 are 3,23,31. Prime factorization of 2139 in exponential form is:

2139 = 31×231×311

Prime Factorization of 2145


3 2145
5 715
11 143
13 13
1

Prime factors of 2145 are 3,5,11,13. Prime factorization of 2145 in exponential form is:

2145 = 31×51×111×131

∴ So by taking common prime factors GCF of 2139 and 2145 is 3

Greatest Common Factor of 2139 and 2145 by matching factors method

Factors of 2139

List of positive integer factors of 2139 that divides 2139 without a remainder.

1,3,23,31,69,93,713,2139

Factors of 2145

List of positive integer factors of 2145 that divides 2145 without a remainder.

1,3,5,11,13,15,33,39,55,65,143,165,195,429,715,2145

Greatest Common Factor

We found the factors and prime factorization of 2139 and 2145. The biggest common factor number is the GCF number.
So the greatest common factor 2139 and 2145 is 3.

Also check out the Least Common Multiple of 2139 and 2145

Properties of GCF 2139 and 2145

(i) The GCF of 2139 and 2145 is associative

GCF of 2139 and 2145 = GCF of 2145 and 2139

Related Greatest Common Factor of 2139

Related Greatest Common Factor of 2145

Frequently Asked Questions on GCF of 2139 and 2145

1. What is the GCF of 2139 and 2145?

Answer: GCF of 2139 and 2145 is 3.

2. What are the Factors of 2139?

Answer: Factors of 2139 are 1, 3, 23, 31, 69, 93, 713, 2139. There are 8 integers that are factors of 2139. The greatest factor of 2139 is 2139.

3. What are the Factors of 2145?

Answer: Factors of 2145 are 1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 143, 165, 195, 429, 715, 2145. There are 16 integers that are factors of 2145. The greatest factor of 2145 is 2145.

4. How to Find the GCF of 2139 and 2145?

Answer:

Greatest Common Factor of 2139 and 2145 = 3

Step 1: Find the prime factorization of 2139

2139 = 3 x 23 x 31

Step 2: Find the prime factorization of 2145

2145 = 3 x 5 x 11 x 13

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 2139 and 2145 is 3