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 7982, 7990 i.e. 2 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 7982 and 7990 is 2.
GCF(7982,7990) = 2
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 7982
2 | 7982 |
13 | 3991 |
307 | 307 |
1 |
Prime factors of 7982 are 2,13,307. Prime factorization of 7982 in exponential form is:
7982 = 21×131×3071
Prime Factorization of 7990
2 | 7990 |
5 | 3995 |
17 | 799 |
47 | 47 |
1 |
Prime factors of 7990 are 2,5,17,47. Prime factorization of 7990 in exponential form is:
7990 = 21×51×171×471
∴ So by taking common prime factors GCF of 7982 and 7990 is 2
Factors of 7982
List of positive integer factors of 7982 that divides 7982 without a remainder.
1,2,13,26,307,614,3991,7982
Factors of 7990
List of positive integer factors of 7990 that divides 7990 without a remainder.
1,2,5,10,17,34,47,85,94,170,235,470,799,1598,3995,7990
Greatest Common Factor
We found the factors and prime factorization of 7982 and 7990. The biggest common factor number is the GCF number.
So the greatest common factor 7982 and 7990 is 2.
Also check out the Least Common Multiple of 7982 and 7990
(i) The GCF of 7982 and 7990 is associative
GCF of 7982 and 7990 = GCF of 7990 and 7982
1. What is the GCF of 7982 and 7990?
Answer: GCF of 7982 and 7990 is 2.
2. What are the Factors of 7982?
Answer: Factors of 7982 are 1, 2, 13, 26, 307, 614, 3991, 7982. There are 8 integers that are factors of 7982. The greatest factor of 7982 is 7982.
3. What are the Factors of 7990?
Answer: Factors of 7990 are 1, 2, 5, 10, 17, 34, 47, 85, 94, 170, 235, 470, 799, 1598, 3995, 7990. There are 16 integers that are factors of 7990. The greatest factor of 7990 is 7990.
4. How to Find the GCF of 7982 and 7990?
Answer:
Greatest Common Factor of 7982 and 7990 = 2
Step 1: Find the prime factorization of 7982
7982 = 2 x 13 x 307
Step 2: Find the prime factorization of 7990
7990 = 2 x 5 x 17 x 47
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 2
Step 4: Therefore, the greatest common factor of 7982 and 7990 is 2