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 2015, 2016 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 2015 and 2016 is 1.
GCF(2015,2016) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 2015
5 | 2015 |
13 | 403 |
31 | 31 |
1 |
Prime factors of 2015 are 5,13,31. Prime factorization of 2015 in exponential form is:
2015 = 51×131×311
Prime Factorization of 2016
2 | 2016 |
2 | 1008 |
2 | 504 |
2 | 252 |
2 | 126 |
3 | 63 |
3 | 21 |
7 | 7 |
1 |
Prime factors of 2016 are 2,3,7. Prime factorization of 2016 in exponential form is:
2016 = 25×32×71
∴ So by taking common prime factors GCF of 2015 and 2016 is 1
Factors of 2015
List of positive integer factors of 2015 that divides 2015 without a remainder.
1,5,13,31,65,155,403,2015
Factors of 2016
List of positive integer factors of 2016 that divides 2016 without a remainder.
1,2,3,4,6,7,8,9,12,14,16,18,21,24,28,32,36,42,48,56,63,72,84,96,112,126,144,168,224,252,288,336,504,672,1008,2016
Greatest Common Factor
We found the factors and prime factorization of 2015 and 2016. The biggest common factor number is the GCF number.
So the greatest common factor 2015 and 2016 is 1.
Also check out the Least Common Multiple of 2015 and 2016
(i) The GCF of 2015 and 2016 is associative
GCF of 2015 and 2016 = GCF of 2016 and 2015
1. What is the GCF of 2015 and 2016?
Answer: GCF of 2015 and 2016 is 1.
2. What are the Factors of 2015?
Answer: Factors of 2015 are 1, 5, 13, 31, 65, 155, 403, 2015. There are 8 integers that are factors of 2015. The greatest factor of 2015 is 2015.
3. What are the Factors of 2016?
Answer: Factors of 2016 are 1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 72, 84, 96, 112, 126, 144, 168, 224, 252, 288, 336, 504, 672, 1008, 2016. There are 36 integers that are factors of 2016. The greatest factor of 2016 is 2016.
4. How to Find the GCF of 2015 and 2016?
Answer:
Greatest Common Factor of 2015 and 2016 = 1
Step 1: Find the prime factorization of 2015
2015 = 5 x 13 x 31
Step 2: Find the prime factorization of 2016
2016 = 2 x 2 x 2 x 2 x 2 x 3 x 3 x 7
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 2015 and 2016 is 1