# Number Theory Forum

Number Theory Help Forum

1. ### Grouping natural numbers.

• Replies: 2
• Views: 526
Oct 23rd 2011, 11:35 AM
2. ### Math proof regarding gcd

• Replies: 2
• Views: 373
Oct 23rd 2011, 10:25 AM
3. ### Set Theory Transitivity Proof

• Replies: 1
• Views: 748
Oct 22nd 2011, 03:23 PM
4. ### Sum of positive integer divisor

• Replies: 2
• Views: 682
Oct 22nd 2011, 02:05 PM
5. ### Using the fact that a pair of numbers is relatively prime to prove that one is prime

• Replies: 1
• Views: 1,643
Oct 22nd 2011, 12:37 PM
6. ### Summation up to p-1 modulo p, p prime

• Replies: 17
• Views: 1,471
Oct 21st 2011, 05:46 PM
7. ### Hints to prove |6^(2n)-5^m| cannot equal 9.

• Replies: 1
• Views: 451
Oct 20th 2011, 11:38 PM
8. ### primes

• Replies: 1
• Views: 448
Oct 20th 2011, 08:27 AM
9. ### Euler Phi function

• Replies: 1
• Views: 669
Oct 19th 2011, 11:31 PM
10. ### Congruence Proof

• Replies: 4
• Views: 626
Oct 19th 2011, 10:59 PM
11. ### Dividing a square with different parallel lines and minimize distance between.

• Replies: 1
• Views: 650
Oct 19th 2011, 02:04 AM
12. ### De Morgan's Laws proof

• Replies: 1
• Views: 2,115
Oct 17th 2011, 02:56 AM
13. ### Prove the existence of the square root of 2

• Replies: 1
• Views: 1,883
Oct 17th 2011, 01:50 AM
14. ### product of all line segments joining solutins of nth root of unity

• Replies: 2
• Views: 880
Oct 16th 2011, 07:55 PM
15. ### Expressing A Piece Wise Function

• Replies: 1
• Views: 697
Oct 15th 2011, 02:00 PM
16. ### Number Theoretic Function t(n) or "tao" Proof

• Replies: 7
• Views: 2,529
Oct 15th 2011, 08:06 AM
17. ### Congruence Equations

• Replies: 12
• Views: 1,028
Oct 15th 2011, 01:54 AM
18. ### Total number of codes generated from 8 bit blocks

• Replies: 5
• Views: 659
Oct 14th 2011, 02:22 PM
19. ### how many solution in x^2+y^2=1 ( mod p )

• Replies: 0
• Views: 706
Oct 14th 2011, 12:07 AM
20. ### Fibonacci Numbers Proof

• Replies: 2
• Views: 597
Oct 13th 2011, 09:32 PM
21. ### 90!

• Replies: 4
• Views: 1,314
Oct 12th 2011, 09:06 PM
22. ### Little proof

• Replies: 2
• Views: 513
Oct 11th 2011, 08:44 PM
23. ### if p divides x then is xy(mod p) = 0 ?

• Replies: 2
• Views: 653
Oct 11th 2011, 11:52 AM
24. ### Decimal Representations...

• Replies: 2
• Views: 436
Oct 10th 2011, 08:19 PM
25. ### Algebraic Numbers

• Replies: 1
• Views: 3,073
Oct 10th 2011, 02:54 PM
26. ### Algebraic Numbers Proof

• Replies: 1
• Views: 1,154
Oct 10th 2011, 02:47 PM
27. ### Can this equation have any other roots

• Replies: 0
• Views: 608
Oct 10th 2011, 05:26 AM
28. ### Am I applying Euclid's algorithm effectively?

• Replies: 9
• Views: 1,155
Oct 9th 2011, 01:30 PM
29. ### can this expression be a perfect square?

• Replies: 3
• Views: 781
Oct 9th 2011, 12:10 PM
30. ### If r divides xy and s divides xy but gcd(r,s) =1: show that r divides xy/s

• Replies: 3
• Views: 827
Oct 8th 2011, 04:16 PM

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