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 2787, 2790 i.e. 3 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 2787 and 2790 is 3.
GCF(2787,2790) = 3
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 2787
3 | 2787 |
929 | 929 |
1 |
Prime factors of 2787 are 3,929. Prime factorization of 2787 in exponential form is:
2787 = 31×9291
Prime Factorization of 2790
2 | 2790 |
3 | 1395 |
3 | 465 |
5 | 155 |
31 | 31 |
1 |
Prime factors of 2790 are 2,3,5,31. Prime factorization of 2790 in exponential form is:
2790 = 21×32×51×311
∴ So by taking common prime factors GCF of 2787 and 2790 is 3
Factors of 2787
List of positive integer factors of 2787 that divides 2787 without a remainder.
1,3,929,2787
Factors of 2790
List of positive integer factors of 2790 that divides 2790 without a remainder.
1,2,3,5,6,9,10,15,18,30,31,45,62,90,93,155,186,279,310,465,558,930,1395,2790
Greatest Common Factor
We found the factors and prime factorization of 2787 and 2790. The biggest common factor number is the GCF number.
So the greatest common factor 2787 and 2790 is 3.
Also check out the Least Common Multiple of 2787 and 2790
(i) The GCF of 2787 and 2790 is associative
GCF of 2787 and 2790 = GCF of 2790 and 2787
1. What is the GCF of 2787 and 2790?
Answer: GCF of 2787 and 2790 is 3.
2. What are the Factors of 2787?
Answer: Factors of 2787 are 1, 3, 929, 2787. There are 4 integers that are factors of 2787. The greatest factor of 2787 is 2787.
3. What are the Factors of 2790?
Answer: Factors of 2790 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 279, 310, 465, 558, 930, 1395, 2790. There are 24 integers that are factors of 2790. The greatest factor of 2790 is 2790.
4. How to Find the GCF of 2787 and 2790?
Answer:
Greatest Common Factor of 2787 and 2790 = 3
Step 1: Find the prime factorization of 2787
2787 = 3 x 929
Step 2: Find the prime factorization of 2790
2790 = 2 x 3 x 3 x 5 x 31
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 2787 and 2790 is 3