# Number Theory Forum

Number Theory Help Forum

1. ### Can you help me about GCD.?

• Replies: 3
• Views: 590
Dec 13th 2009, 11:30 PM
2. ### primitive root of a prime

• Replies: 1
• Views: 514
Dec 13th 2009, 08:39 PM
3. ### problem involving sum of divisors

• Replies: 5
• Views: 405
Dec 13th 2009, 07:42 PM
4. ### Need help with this congruency problem

• Replies: 2
• Views: 558
Dec 13th 2009, 03:03 PM
5. ### Diophantine Equation

• Replies: 0
• Views: 564
Dec 13th 2009, 01:16 PM
6. ### twin primes

• Replies: 1
• Views: 897
Dec 13th 2009, 12:59 PM
7. ### order

• Replies: 1
• Views: 454
Dec 13th 2009, 06:55 AM
8. ### How do you find the last digit of a number using Fermat's Little Theorem

• Replies: 4
• Views: 2,239
Dec 13th 2009, 05:52 AM
9. ### numbers in different bases

• Replies: 3
• Views: 390
Dec 12th 2009, 08:19 PM
10. ### fundamental pythagorean triangles

• Replies: 2
• Views: 737
Dec 12th 2009, 10:54 AM
11. ### Math Proof Help

• Replies: 8
• Views: 692
Dec 12th 2009, 09:05 AM
12. ### Prime gaps of particular lengths

• Replies: 2
• Views: 487
Dec 11th 2009, 02:30 PM
13. ### Least positive residue

• Replies: 1
• Views: 668
Dec 11th 2009, 10:58 AM
14. ### Legendre Symbol (5/p)

• Replies: 8
• Views: 3,960
Dec 11th 2009, 03:37 AM
15. ### Fibonacci Powers

• Replies: 0
• Views: 415
Dec 10th 2009, 07:19 PM
16. ### Proof of integers

• Replies: 1
• Views: 710
Dec 10th 2009, 02:33 PM
17. ### Mobius Inversion Formula

• Replies: 9
• Views: 1,207
Dec 10th 2009, 12:35 PM
18. ### Prime Numbers!

• Replies: 5
• Views: 517
Dec 10th 2009, 07:47 AM
19. ### Number Theory

• Replies: 3
• Views: 364
Dec 10th 2009, 04:06 AM
20. ### Sum of co-primes prior N

• Replies: 7
• Views: 740
Dec 9th 2009, 07:34 PM
21. ### solving congruence equations

• Replies: 1
• Views: 706
Dec 9th 2009, 02:17 PM
22. ### Phi function

• Replies: 3
• Views: 417
Dec 9th 2009, 12:55 PM
23. ### N! is never a perfect square

• Replies: 7
• Views: 3,349
Dec 9th 2009, 09:41 AM
24. ### Least Positive Residue

• Replies: 0
• Views: 606
Dec 9th 2009, 08:26 AM
25. ### Square Root as a fraction?

• Replies: 4
• Views: 5,250
Dec 9th 2009, 06:53 AM
26. ### Pell equations

• Replies: 0
• Views: 455
Dec 8th 2009, 03:08 PM
27. ### Odometer Palindromes....

• Replies: 1
• Views: 978
Dec 8th 2009, 03:06 PM
28. ### System of two equations with three integer unknowns

• Replies: 6
• Views: 798
Dec 8th 2009, 02:56 PM
29. ### More mod

• Replies: 3
• Views: 483
Dec 8th 2009, 02:55 PM
30. ### Arithmetical functions

• Replies: 2
• Views: 836
Dec 8th 2009, 02:47 AM

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