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 8405, 8409 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 8405 and 8409 is 1.
GCF(8405,8409) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 8405
5 | 8405 |
41 | 1681 |
41 | 41 |
1 |
Prime factors of 8405 are 5,41. Prime factorization of 8405 in exponential form is:
8405 = 51×412
Prime Factorization of 8409
3 | 8409 |
2803 | 2803 |
1 |
Prime factors of 8409 are 3,2803. Prime factorization of 8409 in exponential form is:
8409 = 31×28031
∴ So by taking common prime factors GCF of 8405 and 8409 is 1
Factors of 8405
List of positive integer factors of 8405 that divides 8405 without a remainder.
1,5,41,205,1681,8405
Factors of 8409
List of positive integer factors of 8409 that divides 8409 without a remainder.
1,3,2803,8409
Greatest Common Factor
We found the factors and prime factorization of 8405 and 8409. The biggest common factor number is the GCF number.
So the greatest common factor 8405 and 8409 is 1.
Also check out the Least Common Multiple of 8405 and 8409
(i) The GCF of 8405 and 8409 is associative
GCF of 8405 and 8409 = GCF of 8409 and 8405
1. What is the GCF of 8405 and 8409?
Answer: GCF of 8405 and 8409 is 1.
2. What are the Factors of 8405?
Answer: Factors of 8405 are 1, 5, 41, 205, 1681, 8405. There are 6 integers that are factors of 8405. The greatest factor of 8405 is 8405.
3. What are the Factors of 8409?
Answer: Factors of 8409 are 1, 3, 2803, 8409. There are 4 integers that are factors of 8409. The greatest factor of 8409 is 8409.
4. How to Find the GCF of 8405 and 8409?
Answer:
Greatest Common Factor of 8405 and 8409 = 1
Step 1: Find the prime factorization of 8405
8405 = 5 x 41 x 41
Step 2: Find the prime factorization of 8409
8409 = 3 x 2803
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 8405 and 8409 is 1