# Number Theory Forum

Number Theory Help Forum

1. ### A question on modular arithmetic

• Replies: 6
• Views: 689
Nov 19th 2010, 04:25 AM
2. ### Prove that sqrt(5) is irrational?

• Replies: 5
• Views: 7,106
Nov 18th 2010, 10:13 PM
3. ### Countability of N x N (Naturals x Naturals)

• Replies: 1
• Views: 774
Nov 18th 2010, 06:26 PM
4. ### Primitive Root Question

• Replies: 1
• Views: 597
Nov 18th 2010, 05:46 PM
5. ### Showing existence of 2 constants

• Replies: 7
• Views: 562
Nov 18th 2010, 08:41 AM
6. ### Infinite series of positive integers - proving existence

• Replies: 2
• Views: 951
Nov 17th 2010, 08:26 PM
7. ### Prove that (product of primes between n and 2n) > 2^n

• Replies: 2
• Views: 1,061
Nov 17th 2010, 02:45 PM
8. ### Bound on Natural Numbers proof

• Replies: 2
• Views: 506
Nov 17th 2010, 08:16 AM
9. ### How many integers n are there such that 0 ≤ n ≤ 720 and n^2 ≡ 1 (mod 720)?

• Replies: 2
• Views: 806
Nov 17th 2010, 02:45 AM
10. ### Irrational Uncountability proof

• Replies: 1
• Views: 838
Nov 16th 2010, 06:16 PM
11. ### Uniqueness of Square Root proof

• Replies: 4
• Views: 1,219
Nov 16th 2010, 12:19 PM
12. ### Primitive Root questions

• Replies: 1
• Views: 1,117
Nov 16th 2010, 03:22 AM
13. ### On GCDs and power's of 2

• Replies: 3
• Views: 901
Nov 16th 2010, 02:19 AM
14. ### For all a,b in ℤ/n, can a be divided by b in ℤ/n if, and only if, gcd(n,b) = 1?

• Replies: 1
• Views: 568
Nov 15th 2010, 12:38 PM
15. ### Fermats last theorem solution, try 2.

• Replies: 3
• Views: 901
Nov 14th 2010, 11:24 PM
16. ### Mersenne numbers

• Replies: 4
• Views: 767
Nov 14th 2010, 06:06 PM
17. ### [SOLVED] Ceiling and Floor

• Replies: 8
• Views: 1,097
Nov 14th 2010, 05:47 PM
18. ### [SOLVED] Floor Function

• Replies: 3
• Views: 681
Nov 14th 2010, 11:44 AM
19. ### Special polynomials

• Replies: 3
• Views: 463
Nov 14th 2010, 11:37 AM
20. ### Representing two's compliment

• Replies: 1
• Views: 572
Nov 14th 2010, 08:41 AM
21. ### Modular Exponentiation

• Replies: 2
• Views: 948
Nov 13th 2010, 01:54 PM
22. ### 2 interesting problems

• Replies: 7
• Views: 1,363
Nov 13th 2010, 01:33 PM
23. ### last two digits

• Replies: 3
• Views: 541
Nov 13th 2010, 09:57 AM
24. ### Extended Euclid's algorithm - multiplicative inverse

• Replies: 2
• Views: 3,162
Nov 12th 2010, 01:45 AM
25. ### Additive and multiplicative Inverse

• Replies: 1
• Views: 1,507
Nov 11th 2010, 10:22 PM
26. ### Hensel's lemma

• Replies: 1
• Views: 1,006
Nov 11th 2010, 06:26 PM
27. ### Euler Phi Function Problem

• Replies: 1
• Views: 589
Nov 11th 2010, 06:23 PM
28. ### Prime Related Problem Again

• Replies: 3
• Views: 381
Nov 11th 2010, 06:12 PM

• Replies: 3
• Views: 508
Nov 11th 2010, 03:50 PM

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