# Number Theory Forum

Number Theory Help Forum

1. ### Mod proof with primes

• Replies: 2
• Views: 1,440
Feb 1st 2010, 06:32 PM
2. ### n^3 mod 6 = n mod 6

• Replies: 1
• Views: 673
Feb 1st 2010, 03:35 PM
3. ### Euler totient function

• Replies: 2
• Views: 729
Feb 1st 2010, 09:33 AM
4. ### how to solve this in natural numbers?

• Replies: 1
• Views: 416
Jan 31st 2010, 12:37 PM
5. ### Simple mod problem, not sure if I'm doing this right, can someone check me please?

• Replies: 4
• Views: 692
Jan 31st 2010, 09:49 AM
6. ### prime or not?

• Replies: 1
• Views: 406
Jan 31st 2010, 05:42 AM
7. ### product of rational and irrational is always irrational

• Replies: 2
• Views: 1,050
Jan 31st 2010, 05:40 AM
8. ### Prove that

• Replies: 1
• Views: 482
Jan 31st 2010, 05:14 AM
9. ### the Euler φ-function

• Replies: 1
• Views: 439
Jan 31st 2010, 02:59 AM
10. ### Find all the functions

• Replies: 1
• Views: 395
Jan 31st 2010, 01:07 AM
11. ### Pythagorean triples

• Replies: 8
• Views: 588
Jan 30th 2010, 06:21 AM
12. ### x^n ≡ 3 (mod 4) only if x ≡ n ≡ 1 (mod 2)

• Replies: 1
• Views: 521
Jan 30th 2010, 04:24 AM
13. ### given positive integers a and b such that a|b^2, b^2|a^3, a^3|b^4,...

• Replies: 4
• Views: 566
Jan 30th 2010, 03:59 AM
14. ### Opinion on proof(Integer divisibility)

• Replies: 5
• Views: 631
Jan 29th 2010, 10:35 PM
15. ### Diophantine eqn

• Replies: 1
• Views: 641
Jan 29th 2010, 11:37 AM
16. ### Primes of the form 4n+3

• Replies: 2
• Views: 668
Jan 29th 2010, 07:53 AM
17. ### abstract algebra #2

• Replies: 5
• Views: 438
Jan 28th 2010, 09:52 PM
18. ### Primes p 123456789

• Replies: 3
• Views: 629
Jan 28th 2010, 08:45 PM
19. ### Divisibility problem

• Replies: 1
• Views: 714
Jan 28th 2010, 02:42 PM
20. ### how to prove pi is not an algebraic number

• Replies: 7
• Views: 1,544
Jan 28th 2010, 11:17 AM
21. ### proof [(a,b),c]=([a,c],[b,c])...?

• Replies: 2
• Views: 518
Jan 28th 2010, 08:27 AM
22. ### two consecutive primes

• Replies: 7
• Views: 1,287
Jan 27th 2010, 11:10 AM
23. ### Base conversion from any radix base to any other radix base

• Replies: 0
• Views: 714
Jan 27th 2010, 09:25 AM
24. ### Difference method

• Replies: 1
• Views: 348
Jan 27th 2010, 03:04 AM
25. ### Congruence problems

• Replies: 3
• Views: 855
Jan 26th 2010, 06:30 PM
26. ### n^2 + n + 41 and primes

• Replies: 5
• Views: 1,272
Jan 26th 2010, 08:13 AM
27. ### Help on a proof - square roots

• Replies: 2
• Views: 433
Jan 26th 2010, 05:28 AM
28. ### Testing Riemanns Hypothesis - need help

• Replies: 6
• Views: 523
Jan 25th 2010, 12:15 PM
29. ### Legendre Symbol and Quadratic Reciprocity

• Replies: 1
• Views: 865
Jan 25th 2010, 08:31 AM

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