# Number Theory Forum

Number Theory Help Forum

1. ### Ramanujan's sum - help with proof.

• Replies: 2
• Views: 1,091
Aug 6th 2010, 07:27 AM

• Replies: 8
• Views: 725
Aug 6th 2010, 07:11 AM
3. ### Regarding Wilson's Theorem

• Replies: 11
• Views: 983
Aug 5th 2010, 01:53 PM
4. ### How to identify primes in quadratic fields

• Replies: 2
• Views: 571
Aug 5th 2010, 02:38 AM
5. ### Positive Solutions to Linear Diophantine Equation

• Replies: 2
• Views: 1,677
Aug 3rd 2010, 11:22 PM
6. ### modular arith

• Replies: 2
• Views: 639
Aug 3rd 2010, 11:47 AM
7. ### Base Conversion - Negative Base

• Replies: 7
• Views: 1,745
Aug 3rd 2010, 05:13 AM
8. ### Fermat's theorem on sums of two squares

• Replies: 3
• Views: 736
Aug 2nd 2010, 12:33 PM
9. ### units/ones digit

• Replies: 9
• Views: 931
Aug 2nd 2010, 11:51 AM
10. ### Integers in a logarithmic relation

• Replies: 19
• Views: 1,563
Aug 1st 2010, 03:09 PM
11. ### A problem about divisibility

• Replies: 3
• Views: 491
Jul 29th 2010, 09:18 PM
12. ### Period of modulo sequence? (linear congruential random generator)

• Replies: 2
• Views: 862
Jul 29th 2010, 05:48 AM
13. ### Distribution of primes

• Replies: 9
• Views: 608
Jul 29th 2010, 02:21 AM
14. ### which number is larger?

• Replies: 8
• Views: 597
Jul 28th 2010, 06:22 AM
15. ### polynomial

• Replies: 6
• Views: 625
Jul 27th 2010, 04:55 PM
16. ### sets

• Replies: 2
• Views: 460
Jul 26th 2010, 08:32 AM
17. ### Unique representation of N integers randomly chosen out of a set of M (N<M) numbers

• Replies: 7
• Views: 887
Jul 25th 2010, 07:26 PM
18. ### Prove a product is rational

• Replies: 1
• Views: 517
Jul 25th 2010, 07:24 PM
19. ### The [5,2] error correcting code

• Replies: 3
• Views: 2,438
Jul 25th 2010, 08:03 AM
20. ### Polynomial in integral coefficients

• Replies: 9
• Views: 1,748
Jul 24th 2010, 05:54 AM
21. ### Divisibility

• Replies: 3
• Views: 505
Jul 23rd 2010, 09:09 AM
22. ### Prove 2^(1/2) + 6^(1/2) is irrational?

• Replies: 11
• Views: 1,188
Jul 23rd 2010, 06:42 AM
23. ### Solving an equation in powers of 10

• Replies: 2
• Views: 590
Jul 23rd 2010, 05:16 AM
24. ### [SOLVED] Is the number a^(1/2) + b^(1/2) always irrational with the following conditions?

• Replies: 1
• Views: 702
Jul 23rd 2010, 04:53 AM
25. ### My guess ... easy proof ?

• Replies: 3
• Views: 680
Jul 23rd 2010, 02:28 AM
26. ### Maximal Domain Convention

• Replies: 2
• Views: 847
Jul 23rd 2010, 02:23 AM
27. ### Field norm and ideal norm

• Replies: 2
• Views: 630
Jul 22nd 2010, 08:47 PM
28. ### Repeating decimals

• Replies: 5
• Views: 1,081
Jul 22nd 2010, 08:21 PM
29. ### Help finding a clean representation of a peculiar sequence

• Replies: 3
• Views: 682
Jul 22nd 2010, 08:12 PM

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