# Number Theory Forum

Number Theory Help Forum

1. ### sum of 4 squares

• Replies: 1
• Views: 704
Apr 15th 2009, 09:26 AM
2. ### Prove a congruence implication

• Replies: 1
• Views: 517
Apr 15th 2009, 02:21 AM
3. ### Find all primes p such that $\frac{10}{p}$=1.

• Replies: 2
• Views: 1,871
Apr 14th 2009, 09:54 PM
4. ### Infintely many primes of the form:

• Replies: 2
• Views: 636
Apr 14th 2009, 03:54 PM
5. ### proofs using the axioms of rings

• Replies: 2
• Views: 1,025
Apr 13th 2009, 09:18 PM
6. ### Primitive sequences (true or false questions).

• Replies: 2
• Views: 712
Apr 13th 2009, 06:10 PM
7. ### how Euclid's Algorithm can be used to solve linear congruence?

• Replies: 0
• Views: 878
Apr 13th 2009, 05:53 PM
8. ### How to find all the coprimes of a number n in a given range

• Replies: 7
• Views: 13,751
Apr 13th 2009, 03:57 AM
9. ### Simultaneous integer primality testing

• Replies: 0
• Views: 535
Apr 12th 2009, 06:40 PM
10. ### Consecutive integers

• Replies: 2
• Views: 721
Apr 12th 2009, 06:24 PM

• Replies: 3
• Views: 552
Apr 11th 2009, 04:17 PM
12. ### Diophantine Equation Proof

• Replies: 1
• Views: 875
Apr 10th 2009, 07:07 PM
13. ### [SOLVED] Sum of 4 squares

• Replies: 5
• Views: 923
Apr 10th 2009, 06:54 PM
14. ### congruence existence problem

• Replies: 4
• Views: 599
Apr 10th 2009, 01:48 PM
15. ### Prime Numbers and Divisibility

• Replies: 2
• Views: 1,283
Apr 10th 2009, 12:36 PM
16. ### Number puzzle...

• Replies: 8
• Views: 1,002
Apr 9th 2009, 09:24 PM
17. ### pythagorean

• Replies: 1
• Views: 771
Apr 9th 2009, 08:01 PM
18. ### Riemann's prime counting function

• Replies: 1
• Views: 670
Apr 8th 2009, 04:31 PM
19. ### number of incongruent sols of x^n [congruent to] 1 (mod p)

• Replies: 1
• Views: 1,264
Apr 8th 2009, 11:26 AM
20. ### For all k|n => k|f(n) What can k be?

• Replies: 0
• Views: 608
Apr 8th 2009, 08:59 AM
21. ### phi(x/2) and w(x) minus pi(x)=???

• Replies: 0
• Views: 613
Apr 7th 2009, 03:30 AM
22. ### stuck on a proof of x^n congr. 1 mod p

• Replies: 1
• Views: 691
Apr 5th 2009, 03:00 PM
23. ### Help with some Proofs

• Replies: 1
• Views: 427
Apr 4th 2009, 01:07 PM
24. ### Another congruence problem

• Replies: 10
• Views: 863
Apr 3rd 2009, 05:14 PM
25. ### help with a proof on orders

• Replies: 2
• Views: 616
Apr 2nd 2009, 09:14 PM
26. ### need help on "integral part" [x]

• Replies: 3
• Views: 356
Apr 2nd 2009, 04:14 PM
27. ### Euler Phi primes with just definition of Phi

• Replies: 2
• Views: 650
Apr 1st 2009, 05:00 AM
28. ### show 3|n iff 3|s

• Replies: 2
• Views: 669
Mar 31st 2009, 09:47 PM
29. ### How can I work this out?

• Replies: 2
• Views: 607
Mar 30th 2009, 07:08 AM
30. ### Wondering if a difference of 1 in a relation affects my proof

• Replies: 2
• Views: 460
Mar 29th 2009, 08:06 PM

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