What is the smallest number that is divisible evenly by all of the digits 1 through 9?
Solution to the Problem:
The answer is 2520.To be divisible by 2, you need a 2 in the answer.
To be divisible by 3, you need a 3.
To be divisible by 4, you need an additional 2 (You don't need a 4 because there is already a 2 earlier).
To be divisible by 5, you need a 5.
To be divisible by 6, you don't need any additional numbers (there is already a 2 and a 3).
To be divisible by 7, you need a 7.
To be divisible by 8, you need an additional 2.
To be divisible by 9, you need an additional 3.
Now multiply 2 x 3 x 2 x 5 x 7 x 2 x 3 = 2,520.
However, delahoydep@kpmath.com and Dakota Rees sent in the answer of 0, and 0 is divisible by each of the numbers 2, 3, 4, ..., 9!!!
Correctly solved by:
1. Chad Fore | Gate City, Virginia |
2. Alp Aribal | Istanbul, Turkey |
3. Mariah Stoddard |
Mountain View High School, Mountain View, Wyoming |
4. James Alarie | Flint, Michigan |
5. delahoydep@kpmath.com |
Mountain View High School, Mountain View, Wyoming |
6. Blace Martin |
Mountain View High School, Mountain View, Wyoming |
7. Dakota Rees |
Mountain View High School, Mountain View, Wyoming |
8. Chelsea Anglen |
Mountain View High School, Mountain View, Wyoming |
9. McKinna Salsbury |
Mountain View High School, Mountain View, Wyoming |
10. Halee Salsbury |
Mountain View High School, Mountain View, Wyoming |
11. Cami Micheli |
Mountain View High School, Mountain View, Wyoming |
12. Felicia Lopez |
Mountain View High School, Mountain View, Wyoming |
13. Tyler Cantrell |
Mountain View High School, Mountain View, Wyoming |
14. Karsten Hauf |
Mountain View High School, Mountain View, Wyoming |
15. Lisa Merwyn | Taylor, Michigan |