# Number Theory Forum

Number Theory Help Forum

1. ### Sums, logarithms and harmonic numbers identity which I don't understand

• Replies: 2
• Views: 708
May 28th 2011, 02:34 PM
2. ### Is there any easy way to find the remainders of very large integer divisions?

• Replies: 15
• Views: 1,785
May 27th 2011, 09:42 PM
3. ### Difficult number sequences

• Replies: 4
• Views: 2,615
May 27th 2011, 05:37 PM
4. ### Understanding Modulo Arithmetic

• Replies: 3
• Views: 443
May 26th 2011, 02:34 PM
5. ### [SOLVED] gcd proof

• Replies: 2
• Views: 382
May 25th 2011, 12:59 PM
6. ### [SOLVED] gcd(a,b)=1 and c|a

• Replies: 3
• Views: 348
May 24th 2011, 07:20 PM
7. ### [SOLVED] gcd(a,b)=a

• Replies: 3
• Views: 287
May 24th 2011, 12:52 PM
8. ### Finding all natural numbers under a condition

• Replies: 1
• Views: 634
May 23rd 2011, 10:43 AM
9. ### Extra Solutions of a Quadratic Diophantine Equation

• Replies: 3
• Views: 1,169
May 21st 2011, 05:20 AM
10. ### Integers

• Replies: 4
• Views: 1,086
May 20th 2011, 11:23 AM

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12. ### Least Common Multiple Solution

• Replies: 1
• Views: 836
May 17th 2011, 11:58 PM
13. ### Extended Euclidean Algorithm

• Replies: 1
• Views: 632
May 17th 2011, 07:27 AM
14. ### Legendre symbol

• Replies: 4
• Views: 1,313
May 16th 2011, 07:55 PM
15. ### Proving a pair of integers are not prime in a particular number system

• Replies: 1
• Views: 675
May 16th 2011, 07:54 PM
16. ### Goldbach's conjecture proof?

• Replies: 3
• Views: 877
May 15th 2011, 11:22 PM
17. ### [SOLVED] Dirichlet series of extended Liouville function

• Replies: 2
• Views: 939
May 15th 2011, 08:19 AM
18. ### [SOLVED] Digital Root Divisibility Test Not Working?

• Replies: 2
• Views: 1,144
May 13th 2011, 06:18 PM
19. ### Writing number as a product

• Replies: 0
• Views: 578
May 13th 2011, 03:58 AM
20. ### Sequence embedding?

• Replies: 0
• Views: 647
May 13th 2011, 02:57 AM
21. ### Countable Union proof

• Replies: 1
• Views: 561
May 12th 2011, 05:02 PM
22. ### Interval Countability proof

• Replies: 2
• Views: 579
May 12th 2011, 04:29 PM
23. ### Approximate functional equation for Dirichlet eta, does any exist?

• Replies: 0
• Views: 595
May 10th 2011, 01:36 AM
24. ### [SOLVED] O(Log(n)) Algorithm for Computing Fibonacci Numbers, SICP Ex. 1.19

• Replies: 2
• Views: 3,935
May 9th 2011, 10:55 AM
25. ### modular arithmetic help

• Replies: 1
• Views: 815
May 9th 2011, 05:50 AM
26. ### congruence question

• Replies: 4
• Views: 635
May 8th 2011, 10:09 AM
27. ### divisibility/ binomial theorem question

• Replies: 1
• Views: 1,059
May 7th 2011, 03:55 PM
28. ### Square Root Uniqueness

• Replies: 4
• Views: 693
May 7th 2011, 03:02 AM
29. ### Prime factorization phi question

• Replies: 7
• Views: 793
May 6th 2011, 07:26 PM
30. ### Nonempty Subset of Q

• Replies: 3
• Views: 984
May 6th 2011, 07:12 PM

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