PlanetMath (more info)
 Math for the people, by the people. Sponsor PlanetMath
Encyclopedia | Requests | Forums | Docs | Wiki | Random | RSS  
Login
create new user
name:
pass:
forget your password?
Main Menu
sections
Encyclopædia
Papers
Books
Expositions

meta
Requests (236)
Orphanage
Unclass'd (1)
Unproven (540)
Corrections (46)
Classification

talkback
Polls
Forums
Feedback
Bug Reports

downloads
Snapshots
PM Book

information
News
Docs
Wiki
ChangeLog
TODO List
Copyright
About
References to 'odd number'
1. a few examples of solutions to Zn\'am's problem by PrimeFan
2. all positive integers are polite numbers except powers of two by PrimeFan
3. alternating sum by PrimeFan
4. Carmichael function by PrimeFan
5. central binomial coefficient by rspuzio
6. Chen's theorem by PrimeFan
7. derivation of Pythagorean triples by pahio
8. determining when a point is inside a polygon by matte
9. double factorial by drini
10. examples of polydivisible numbers by PrimeFan
11. history of prime numbers by Mathprof
12. integer factorization by PrimeFan
13. Miller-Rabin prime test by mathwizard
14. multiplication by PrimeFan
15. Nicomachus' theorem by PrimeFan
16. noncototient by PrimeFan
17. parity of $\tau$ function by pahio
18. Pascal's triangle is symmetrical along its central column by PrimeFan
19. polite number by PrimeFan
20. practical number by CompositeFan
21. proof of fundamental theorem of algebra by scanez
22. proof of Lagrange's four-square theorem by CWoo
23. proof that $4^x$ exceeds the product of the primes up to $x$ by PrimeFan
24. proof that there are infinitely many primes using the Mersenne primes by PrimeFan
25. P\'olya's conjecture by PrimeFan
26. quotient category by CWoo
27. Solovay-Strassen test by mathwizard
28. sum of odd numbers by pahio
29. summation by drini
30. table of polite number representations for $1 < n < 101$ by PrimeFan
31. Tutte theorem by scineram
32. twin prime conjecture by alozano
33. unitary perfect number by CompositeFan
34. Viswanath's constant by PrimeFan
35. Wagstaff prime by PrimeFan