# Number Theory Forum

Number Theory Help Forum

1. ### Need help with this congruency problem

• Replies: 2
• Views: 545
Dec 13th 2009, 03:03 PM
2. ### Diophantine Equation

• Replies: 0
• Views: 552
Dec 13th 2009, 01:16 PM
3. ### twin primes

• Replies: 1
• Views: 844
Dec 13th 2009, 12:59 PM
4. ### order

• Replies: 1
• Views: 442
Dec 13th 2009, 06:55 AM
5. ### How do you find the last digit of a number using Fermat's Little Theorem

• Replies: 4
• Views: 2,184
Dec 13th 2009, 05:52 AM
6. ### numbers in different bases

• Replies: 3
• Views: 381
Dec 12th 2009, 08:19 PM
7. ### fundamental pythagorean triangles

• Replies: 2
• Views: 705
Dec 12th 2009, 10:54 AM
8. ### Math Proof Help

• Replies: 8
• Views: 679
Dec 12th 2009, 09:05 AM
9. ### Prime gaps of particular lengths

• Replies: 2
• Views: 479
Dec 11th 2009, 02:30 PM
10. ### Least positive residue

• Replies: 1
• Views: 655
Dec 11th 2009, 10:58 AM
11. ### Legendre Symbol (5/p)

• Replies: 8
• Views: 3,808
Dec 11th 2009, 03:37 AM
12. ### Fibonacci Powers

• Replies: 0
• Views: 405
Dec 10th 2009, 07:19 PM
13. ### Proof of integers

• Replies: 1
• Views: 667
Dec 10th 2009, 02:33 PM
14. ### Mobius Inversion Formula

• Replies: 9
• Views: 1,194
Dec 10th 2009, 12:35 PM
15. ### Prime Numbers!

• Replies: 5
• Views: 510
Dec 10th 2009, 07:47 AM
16. ### Number Theory

• Replies: 3
• Views: 357
Dec 10th 2009, 04:06 AM
17. ### Sum of co-primes prior N

• Replies: 7
• Views: 718
Dec 9th 2009, 07:34 PM
18. ### solving congruence equations

• Replies: 1
• Views: 696
Dec 9th 2009, 02:17 PM
19. ### Phi function

• Replies: 3
• Views: 406
Dec 9th 2009, 12:55 PM
20. ### N! is never a perfect square

• Replies: 7
• Views: 3,246
Dec 9th 2009, 09:41 AM
21. ### Least Positive Residue

• Replies: 0
• Views: 592
Dec 9th 2009, 08:26 AM
22. ### Square Root as a fraction?

• Replies: 4
• Views: 5,114
Dec 9th 2009, 06:53 AM
23. ### Pell equations

• Replies: 0
• Views: 447
Dec 8th 2009, 03:08 PM
24. ### Odometer Palindromes....

• Replies: 1
• Views: 941
Dec 8th 2009, 03:06 PM
25. ### System of two equations with three integer unknowns

• Replies: 6
• Views: 781
Dec 8th 2009, 02:56 PM
26. ### More mod

• Replies: 3
• Views: 470
Dec 8th 2009, 02:55 PM
27. ### Arithmetical functions

• Replies: 2
• Views: 799
Dec 8th 2009, 02:47 AM
28. ### Least common multiple of multiple numbers

• Replies: 0
• Views: 675
Dec 7th 2009, 09:18 PM
29. ### A nice problem for fun - Iranian math competition

• Replies: 8
• Views: 966
Dec 7th 2009, 09:06 PM
30. ### Definition of Eulers Theorem

• Replies: 2
• Views: 715
Dec 7th 2009, 08:05 PM

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