Find a 10 digit number abcdefghij such that each digit is different,
and so that the number ab is divisible by 2, abc is divisible by 3,
abcd is divisible by 4, abcde is divisible by 5,
abcdef is divisible by 6, abcdefg is divisible by 7,
abcdefgh is divisible by 8, abcdefghi is divisible by 9,
and abcdefghij is divisible by 10.
Solution to the Problem:
The unique solution to this problem is 3,816,547,290.Click here for an explanation by Kirsten Barr of J.M.U
Correctly solved by:
| 1. Sagar Patel | Columbus, Georgia |
| 2. Jim Arrison | Norristown, Pennsylvania |
| 3. Alex Ball | Winchester, Virginia |
| 4. Carleton 'Buck' Jones | Midwestern University - Glendale Glendale, Arizona |
| 5. Tristan Collins | Virginia Tech Blacksburg, Virginia |
| 6. Mary Bailey Wickham | Columbus, Georgia |
| 7. Erin Fennacy | Fresno, California |
| 8. James P. Hus | Highland, Indiana |
| 9. Stephen O'Hara | Winchester, Virginia |
| 10. Carter Galbraith | Columbus, Georgia |
| 11. Jeff McKenzie | Winchester, Virginia |
| 12. John Funk | Ventura, California |
| 13. Charles Washington | Winchester, Virginia |
| 14. Julianne Harris | Winchester, Virginia |
| 15. James Alarie | University of Michigan -- Flint Flint, Michigan |
| 16. David McKinney | Winchester, Virginia |
| 17. Simone Giovanetti | Harrisonburg, Virginia |
| 18. Olivia Quach | Harrisonburg, Virginia |
| 19. Cerena Uttal | Winchester, Virginia |
| 20. Jeffrey Gaither | University of Virginia Charlottesville, Virginia |
| 21. Anil Nataraj | Columbus, Georgia |
| 22. Mike Singer | Winchester, Virginia |
| 23. David & Judy Dixon | Bennettsville, South Carolina |
| 24. Henry Tran | Harrisonburg Virginia |
| 25. Addison Rogers | Winchester, Virginia |
| 26. Andrew Montoya | Winchester, Virginia |
| 27. Neal Amos | Columbus, Georgia |
| 28. Misty Carlisle | Cornell University Ithaca, New York |
| 29. Rohit Beheraj | Harrisonburg, Virginia |
| 30. Andrew Barnes | Winchester, Virginia |