# Number Theory Forum

Number Theory Help Forum

1. ### Sum of positive integer divisor

• Replies: 2
• Views: 673
Oct 22nd 2011, 02:05 PM
2. ### Using the fact that a pair of numbers is relatively prime to prove that one is prime

• Replies: 1
• Views: 1,581
Oct 22nd 2011, 12:37 PM
3. ### Summation up to p-1 modulo p, p prime

• Replies: 17
• Views: 1,418
Oct 21st 2011, 05:46 PM
4. ### Hints to prove |6^(2n)-5^m| cannot equal 9.

• Replies: 1
• Views: 445
Oct 20th 2011, 11:38 PM
5. ### primes

• Replies: 1
• Views: 437
Oct 20th 2011, 08:27 AM
6. ### Euler Phi function

• Replies: 1
• Views: 661
Oct 19th 2011, 11:31 PM
7. ### Congruence Proof

• Replies: 4
• Views: 615
Oct 19th 2011, 10:59 PM
8. ### Dividing a square with different parallel lines and minimize distance between.

• Replies: 1
• Views: 640
Oct 19th 2011, 02:04 AM
9. ### De Morgan's Laws proof

• Replies: 1
• Views: 2,071
Oct 17th 2011, 02:56 AM
10. ### Prove the existence of the square root of 2

• Replies: 1
• Views: 1,862
Oct 17th 2011, 01:50 AM
11. ### product of all line segments joining solutins of nth root of unity

• Replies: 2
• Views: 856
Oct 16th 2011, 07:55 PM
12. ### Expressing A Piece Wise Function

• Replies: 1
• Views: 685
Oct 15th 2011, 02:00 PM
13. ### Number Theoretic Function t(n) or "tao" Proof

• Replies: 7
• Views: 2,466
Oct 15th 2011, 08:06 AM
14. ### Congruence Equations

• Replies: 12
• Views: 988
Oct 15th 2011, 01:54 AM
15. ### Total number of codes generated from 8 bit blocks

• Replies: 5
• Views: 648
Oct 14th 2011, 02:22 PM
16. ### how many solution in x^2+y^2=1 ( mod p )

• Replies: 0
• Views: 697
Oct 14th 2011, 12:07 AM
17. ### Fibonacci Numbers Proof

• Replies: 2
• Views: 589
Oct 13th 2011, 09:32 PM
18. ### 90!

• Replies: 4
• Views: 1,228
Oct 12th 2011, 09:06 PM
19. ### Little proof

• Replies: 2
• Views: 477
Oct 11th 2011, 08:44 PM
20. ### if p divides x then is xy(mod p) = 0 ?

• Replies: 2
• Views: 642
Oct 11th 2011, 11:52 AM
21. ### Decimal Representations...

• Replies: 2
• Views: 429
Oct 10th 2011, 08:19 PM
22. ### Algebraic Numbers

• Replies: 1
• Views: 3,017
Oct 10th 2011, 02:54 PM
23. ### Algebraic Numbers Proof

• Replies: 1
• Views: 1,143
Oct 10th 2011, 02:47 PM
24. ### Can this equation have any other roots

• Replies: 0
• Views: 575
Oct 10th 2011, 05:26 AM
25. ### Am I applying Euclid's algorithm effectively?

• Replies: 9
• Views: 1,098
Oct 9th 2011, 01:30 PM
26. ### can this expression be a perfect square?

• Replies: 3
• Views: 742
Oct 9th 2011, 12:10 PM
27. ### If r divides xy and s divides xy but gcd(r,s) =1: show that r divides xy/s

• Replies: 3
• Views: 813
Oct 8th 2011, 04:16 PM
28. ### modular arithmetic

• Replies: 6
• Views: 526
Oct 8th 2011, 10:45 AM
29. ### How to find the sequence?

• Replies: 13
• Views: 922
Oct 8th 2011, 12:32 AM
30. ### Modular arithmetic without a calculator

• Replies: 6
• Views: 4,427
Oct 7th 2011, 11:37 PM

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