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 7856, 7864 i.e. 8 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 7856 and 7864 is 8.
GCF(7856,7864) = 8
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 7856
2 | 7856 |
2 | 3928 |
2 | 1964 |
2 | 982 |
491 | 491 |
1 |
Prime factors of 7856 are 2,491. Prime factorization of 7856 in exponential form is:
7856 = 24×4911
Prime Factorization of 7864
2 | 7864 |
2 | 3932 |
2 | 1966 |
983 | 983 |
1 |
Prime factors of 7864 are 2,983. Prime factorization of 7864 in exponential form is:
7864 = 23×9831
∴ So by taking common prime factors GCF of 7856 and 7864 is 8
Factors of 7856
List of positive integer factors of 7856 that divides 7856 without a remainder.
1,2,4,8,16,491,982,1964,3928,7856
Factors of 7864
List of positive integer factors of 7864 that divides 7864 without a remainder.
1,2,4,8,983,1966,3932,7864
Greatest Common Factor
We found the factors and prime factorization of 7856 and 7864. The biggest common factor number is the GCF number.
So the greatest common factor 7856 and 7864 is 8.
Also check out the Least Common Multiple of 7856 and 7864
(i) The GCF of 7856 and 7864 is associative
GCF of 7856 and 7864 = GCF of 7864 and 7856
1. What is the GCF of 7856 and 7864?
Answer: GCF of 7856 and 7864 is 8.
2. What are the Factors of 7856?
Answer: Factors of 7856 are 1, 2, 4, 8, 16, 491, 982, 1964, 3928, 7856. There are 10 integers that are factors of 7856. The greatest factor of 7856 is 7856.
3. What are the Factors of 7864?
Answer: Factors of 7864 are 1, 2, 4, 8, 983, 1966, 3932, 7864. There are 8 integers that are factors of 7864. The greatest factor of 7864 is 7864.
4. How to Find the GCF of 7856 and 7864?
Answer:
Greatest Common Factor of 7856 and 7864 = 8
Step 1: Find the prime factorization of 7856
7856 = 2 x 2 x 2 x 2 x 491
Step 2: Find the prime factorization of 7864
7864 = 2 x 2 x 2 x 983
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 2 x 2 x 2 = 8
Step 4: Therefore, the greatest common factor of 7856 and 7864 is 8