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 815, 818 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 815 and 818 is 1.
GCF(815,818) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 815
5 | 815 |
163 | 163 |
1 |
Prime factors of 815 are 5,163. Prime factorization of 815 in exponential form is:
815 = 51×1631
Prime Factorization of 818
2 | 818 |
409 | 409 |
1 |
Prime factors of 818 are 2,409. Prime factorization of 818 in exponential form is:
818 = 21×4091
∴ So by taking common prime factors GCF of 815 and 818 is 1
Factors of 815
List of positive integer factors of 815 that divides 815 without a remainder.
1,5,163,815
Factors of 818
List of positive integer factors of 818 that divides 818 without a remainder.
1,2,409,818
Greatest Common Factor
We found the factors and prime factorization of 815 and 818. The biggest common factor number is the GCF number.
So the greatest common factor 815 and 818 is 1.
Also check out the Least Common Multiple of 815 and 818
(i) The GCF of 815 and 818 is associative
GCF of 815 and 818 = GCF of 818 and 815
1. What is the GCF of 815 and 818?
Answer: GCF of 815 and 818 is 1.
2. What are the Factors of 815?
Answer: Factors of 815 are 1, 5, 163, 815. There are 4 integers that are factors of 815. The greatest factor of 815 is 815.
3. What are the Factors of 818?
Answer: Factors of 818 are 1, 2, 409, 818. There are 4 integers that are factors of 818. The greatest factor of 818 is 818.
4. How to Find the GCF of 815 and 818?
Answer:
Greatest Common Factor of 815 and 818 = 1
Step 1: Find the prime factorization of 815
815 = 5 x 163
Step 2: Find the prime factorization of 818
818 = 2 x 409
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 815 and 818 is 1