# Number Theory Forum

Number Theory Help Forum

1. ### Prove that there are always two square roots of a non zero complex number

• Replies: 4
• Views: 1,455
Oct 24th 2009, 07:22 AM
2. ### Number array

• Replies: 3
• Views: 581
Oct 24th 2009, 02:50 AM
3. ### Rational number

• Replies: 4
• Views: 863
Oct 24th 2009, 12:12 AM
4. ### powers and congruences

• Replies: 3
• Views: 489
Oct 23rd 2009, 05:14 PM
5. ### the number 6

• Replies: 2
• Views: 320
Oct 23rd 2009, 05:09 PM
6. ### prove by using PMI

• Replies: 0
• Views: 482
Oct 23rd 2009, 01:57 PM
7. ### Help With Congruence Problems

• Replies: 2
• Views: 580
Oct 23rd 2009, 11:05 AM
8. ### a group that is a subgroup of Zn

• Replies: 1
• Views: 685
Oct 22nd 2009, 09:14 PM
9. ### quick question

• Replies: 2
• Views: 516
Oct 22nd 2009, 02:43 PM
10. ### prove that :

• Replies: 3
• Views: 405
Oct 22nd 2009, 12:26 PM
11. ### Prove this proposition

• Replies: 3
• Views: 469
Oct 22nd 2009, 07:41 AM

• Replies: 1
• Views: 461
Oct 22nd 2009, 07:06 AM
13. ### infinitely many primes of the form 6k + 5 and 6K + 1

• Replies: 1
• Views: 5,802
Oct 22nd 2009, 06:25 AM
14. ### Impossible Math Problem

• Replies: 2
• Views: 889
Oct 22nd 2009, 04:42 AM
15. ### A conjecture involving primes

• Replies: 12
• Views: 783
Oct 22nd 2009, 12:43 AM
16. ### Sum of integers from 1 to n that are relatively prime to n

• Replies: 3
• Views: 963
Oct 21st 2009, 08:58 PM
17. ### Two HARD algebra problems.

• Replies: 7
• Views: 3,261
Oct 20th 2009, 11:08 PM
18. ### Theorem 1 - part 1

• Replies: 2
• Views: 699
Oct 20th 2009, 12:46 PM
19. ### Gcd/Prime Problem

• Replies: 7
• Views: 935
Oct 20th 2009, 07:01 AM
20. ### Fermat's Little Theorem

• Replies: 2
• Views: 822
Oct 19th 2009, 10:47 PM
21. ### Linear Congruences

• Replies: 1
• Views: 438
Oct 19th 2009, 10:33 PM
22. ### Equation

• Replies: 9
• Views: 725
Oct 19th 2009, 06:52 AM
23. ### Proof Using Modular Arithmetic

• Replies: 1
• Views: 677
Oct 19th 2009, 12:11 AM
24. ### Prime comparison

• Replies: 7
• Views: 592
Oct 18th 2009, 11:31 AM
25. ### Mobius inversion proof ... not quite a Dirichlet convolution

• Replies: 4
• Views: 839
Oct 17th 2009, 10:17 PM
26. ### elementary number theory: sum of digits

• Replies: 2
• Views: 839
Oct 17th 2009, 11:40 AM
27. ### No integer solutions to x^4 + y^4=100

• Replies: 1
• Views: 2,574
Oct 17th 2009, 11:04 AM
28. ### d divides n and u = v (mod d) then f(u) = f(v) (mod d) -> f is polynomial over Z_n

• Replies: 0
• Views: 474
Oct 16th 2009, 04:40 PM
29. ### Primes

• Replies: 1
• Views: 477
Oct 16th 2009, 09:13 AM

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