# Number Theory Forum

Number Theory Help Forum

1. ### Conjecture to establish if a number is not prime

• Replies: 1
• Views: 964
Apr 18th 2008, 05:48 AM
2. ### Proof involving GCD of numbers

• Replies: 4
• Views: 701
Apr 17th 2008, 04:35 AM
3. ### Help on Mobius function

• Replies: 1
• Views: 817
Apr 16th 2008, 04:54 AM
4. ### 2 problems I am having difficulties with

• Replies: 2
• Views: 601
Apr 15th 2008, 06:19 PM
5. ### Deduce from Mobius inversion formula

• Replies: 1
• Views: 1,137
Apr 15th 2008, 04:40 PM
6. ### Show that for all integers r,s

• Replies: 1
• Views: 493
Apr 15th 2008, 02:35 PM
7. ### Sum of positive divisor

• Replies: 3
• Views: 803
Apr 15th 2008, 05:27 AM
8. ### Induction proof about polynomials

• Replies: 6
• Views: 484
Apr 14th 2008, 10:19 AM
9. ### [SOLVED] Is this irrationnal ? Rationnal ? Or rationnaly interesting ?

• Replies: 5
• Views: 500
Apr 11th 2008, 02:22 PM
10. ### can you solve this

• Replies: 1
• Views: 452
Apr 10th 2008, 02:31 PM
11. ### Euclid Algorithm

• Replies: 5
• Views: 608
Apr 10th 2008, 06:28 AM
12. ### number theory and abstract algebra

• Replies: 4
• Views: 1,022
Apr 9th 2008, 08:55 AM
13. ### Two more questions (cont.)

• Replies: 1
• Views: 515
Apr 8th 2008, 06:41 PM
14. ### Two more questions

• Replies: 1
• Views: 490
Apr 8th 2008, 06:30 PM
15. ### Polynomials over a Finite Field

• Replies: 0
• Views: 520
Apr 7th 2008, 07:53 PM
16. ### Stumped again

• Replies: 1
• Views: 546
Apr 7th 2008, 06:11 PM
17. ### Dirichlet

• Replies: 6
• Views: 694
Apr 7th 2008, 05:02 PM
18. ### proof that 26 is the only number between a cubed and a squared number

• Replies: 3
• Views: 1,201
Apr 7th 2008, 10:20 AM
19. ### Sums of Squares problem.

• Replies: 5
• Views: 720
Apr 7th 2008, 02:22 AM
20. ### Set Puzzle

• Replies: 1
• Views: 1,011
Apr 6th 2008, 08:46 AM
21. ### Division proof

• Replies: 2
• Views: 792
Apr 4th 2008, 08:34 PM
22. ### What exactly does this mean?

• Replies: 1
• Views: 712
Apr 4th 2008, 02:08 PM
23. ### equation help...

• Replies: 1
• Views: 370
Apr 3rd 2008, 02:55 AM
24. ### Congruence and Euler's function

• Replies: 2
• Views: 507
Apr 3rd 2008, 01:28 AM
25. ### mod not explained

• Replies: 2
• Views: 647
Apr 1st 2008, 03:12 AM
26. ### Can

• Replies: 1
• Views: 450
Mar 31st 2008, 08:20 PM
27. ### Hi

• Replies: 2
• Views: 483
Mar 31st 2008, 05:35 PM
28. ### congruences

• Replies: 13
• Views: 1,097
Mar 30th 2008, 11:11 AM
29. ### Cardinal number exercise

• Replies: 5
• Views: 2,964
Mar 29th 2008, 07:02 AM
30. ### Easy proof by induction

• Replies: 2
• Views: 822
Mar 27th 2008, 07:01 PM

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