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 9905, 9910 i.e. 5 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 9905 and 9910 is 5.
GCF(9905,9910) = 5
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 9905
5 | 9905 |
7 | 1981 |
283 | 283 |
1 |
Prime factors of 9905 are 5,7,283. Prime factorization of 9905 in exponential form is:
9905 = 51×71×2831
Prime Factorization of 9910
2 | 9910 |
5 | 4955 |
991 | 991 |
1 |
Prime factors of 9910 are 2,5,991. Prime factorization of 9910 in exponential form is:
9910 = 21×51×9911
∴ So by taking common prime factors GCF of 9905 and 9910 is 5
Factors of 9905
List of positive integer factors of 9905 that divides 9905 without a remainder.
1,5,7,35,283,1415,1981,9905
Factors of 9910
List of positive integer factors of 9910 that divides 9910 without a remainder.
1,2,5,10,991,1982,4955,9910
Greatest Common Factor
We found the factors and prime factorization of 9905 and 9910. The biggest common factor number is the GCF number.
So the greatest common factor 9905 and 9910 is 5.
Also check out the Least Common Multiple of 9905 and 9910
(i) The GCF of 9905 and 9910 is associative
GCF of 9905 and 9910 = GCF of 9910 and 9905
1. What is the GCF of 9905 and 9910?
Answer: GCF of 9905 and 9910 is 5.
2. What are the Factors of 9905?
Answer: Factors of 9905 are 1, 5, 7, 35, 283, 1415, 1981, 9905. There are 8 integers that are factors of 9905. The greatest factor of 9905 is 9905.
3. What are the Factors of 9910?
Answer: Factors of 9910 are 1, 2, 5, 10, 991, 1982, 4955, 9910. There are 8 integers that are factors of 9910. The greatest factor of 9910 is 9910.
4. How to Find the GCF of 9905 and 9910?
Answer:
Greatest Common Factor of 9905 and 9910 = 5
Step 1: Find the prime factorization of 9905
9905 = 5 x 7 x 283
Step 2: Find the prime factorization of 9910
9910 = 2 x 5 x 991
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 5
Step 4: Therefore, the greatest common factor of 9905 and 9910 is 5