1. There are 120 permutations of the numbers 1, 2, 3, 4 and 5: for example, 1, 3, 2, 4, 5 or 5, 1, 4, 2, 3.

2. 'Two Tribes' went straight into the charts at number 1.

3. The pages of the book were numbered 1 to 268.

4. Erect verticals upon the odd numbers, 1, 3, 5, 7, etc.

5. As long as we're number 1, everybody will be gunning for us.

6. The European numbers 1, 2, 3 and so on, are based on Arabic numerals.

7. Benjamin Franklin set up the Number 1 fire company.

8. Number 1 is the cover charge.

9. Number 1 train to Van Cortlandt Park. Thank you.

10. I'm Number 1 in Row 2.

11. Pete Waters, RFD Number 1 (Sentencedict), Chesterton.

12. You should take the number 1 subway.

13. You were a player. Number 1 for a month.

14. Remember, the number 1 train. The uptown platform.

15. Equivocation is Number 1 cousin to a lie.

16. The recurrence relations about the quantum number 1 of the spherical harmonics are derived with ladder operator.

17. Hydrogen: Lightest chemical element, chemical symbol H, atomic number 1.

18. It comes from "googol", the number 1 followed by 100 zeros.

19. Since I behaves like the number 1 in ordinary algebra it is called the identity matrix.

20. For example : Number 1 engine cowling ; number 3 latch is not secure.

21. A critical point corresponding to the Flow number 1.8 was firstly observed in process of investigating influence of solid-gas density ratio to fluidized behaviors.

22. Weill and Ross (see Resources) state the ability to track and manage these aspects is the Number 1 correlation with successful governance.

23. With the analog clock terminated, there was only one job running, which was job number 1.

24. For example : The protective finish is rough at the number 1 engine inboard pylon.

25. She also hired a coach, Sven Groeneveld, who has worked with some of the top able-bodied players, including current world number 1 Caroline Wozniacki.

26. Isotope of hydrogen, chemical symbol 2H or D, atomic number 1 (But atomic weight approximately 2).

27. Odeblad, E. , "Investigations on the Physiological Basis of Fertility Awareness", Bulletin of Ovulation Method Research and Reference Centre of Australia, Vol 29 Number 1 March 2002, pp 2-11.

28. The serial driver registers itself as character device major number 240, minor number 1.

29. Scheduling train stopped on the assumption that the railway station at the entrance to the train scheduling sequence followed by the number 1,2,3 ...N.

30. Trust me, I'll be the first one to tell you all the reasons why exercise is so important but following a healthy eating regimen must be priority number 1!