1, 2, 6, 42, 1806, ___
What is the 6th number in the sequence above?
Solution to the Problem:
The answer is 3,263,442.
The sequence is of the form: n (n + 1)Begin with 1.
The next term is found by multiplying 1 x (1 + 1) = 1 x 2 = 2
The third term is found by multiplying 2 x (2 + 1) = 2 x 3 = 6
The fourth term is found by multiplying 6 x (6 + 1) = 6 x 7 = 42
The fifth term is found by multiplying 42 x (42 + 1) = 42 x 43 = 1806
The sixth term is found by multiplying 1806 x (1806 + 1) = 1806 x 1807 = 3,263,442
Correctly solved by:
| 1. John Funk | Ventura, California |
| 2. Austin Hale |
Mountain View High School, Mountain View, Wyoming |
| 3. Jacob Harmon |
Mountain View High School, Mountain View, Wyoming |
| 4. Tawny Bugas |
Mountain View High School, Mountain View, Wyoming |
| 5. Trey Briggs |
Mountain View High School, Mountain View, Wyoming |
| 6. Cassie Henry |
Mountain View High School, Mountain View, Wyoming |
| 7. Sierra West |
Mountain View High School, Mountain View, Wyoming |
| 8. Makayla Wisenbaker |
Mountain View High School, Mountain View, Wyoming |
| 9. Matt Hale |
Mountain View High School, Mountain View, Wyoming |
| 10. Jeremy Harmon |
Mountain View High School, Mountain View, Wyoming |
| 11. Rachel Hofer |
Mountain View High School, Mountain View, Wyoming |
| 12. Tori Johnson |
Mountain View High School, Mountain View, Wyoming |
| 13. Chelsea Sidwell |
Mountain View High School, Mountain View, Wyoming |
| 14. Kaycie Rees |
Mountain View High School, Mountain View, Wyoming |
| 15. Ali Lindemood |
Mountain View High School, Mountain View, Wyoming |
| 16. Courtney Peterson |
Mountain View High School, Mountain View, Wyoming |
| 17. Taiya Cheney |
Mountain View High School, Mountain View, Wyoming |
| 18. Michael Black |
Mountain View High School, Mountain View, Wyoming |
| 19. Preston Condos |
Mountain View High School, Mountain View, Wyoming |
| 20. Sammy Hood |
Mountain View High School, Mountain View, Wyoming |
| 21. Kaylie Johnson |
Mountain View High School, Mountain View, Wyoming |
| 22. Becca G. |
Mountain View High School, Mountain View, Wyoming |
| 23. Mark Kampman |
Mountain View High School, Mountain View, Wyoming |
| 24. Bo Aimone |
Mountain View High School, Mountain View, Wyoming |
| 25. Clint Lamb |
Mountain View High School, Mountain View, Wyoming |
| 26. McKinna Salsbury |
Mountain View High School, Mountain View, Wyoming |
| 27. Carrie Cotter | Austin, Texas |