# Number Theory Forum

Number Theory Help Forum

1. ### polynomial

• Replies: 6
• Views: 644
Jul 27th 2010, 04:55 PM
2. ### sets

• Replies: 2
• Views: 489
Jul 26th 2010, 08:32 AM
3. ### Unique representation of N integers randomly chosen out of a set of M (N<M) numbers

• Replies: 7
• Views: 958
Jul 25th 2010, 07:26 PM
4. ### Prove a product is rational

• Replies: 1
• Views: 552
Jul 25th 2010, 07:24 PM
5. ### The [5,2] error correcting code

• Replies: 3
• Views: 2,643
Jul 25th 2010, 08:03 AM
6. ### Polynomial in integral coefficients

• Replies: 9
• Views: 1,856
Jul 24th 2010, 05:54 AM
7. ### Divisibility

• Replies: 3
• Views: 526
Jul 23rd 2010, 09:09 AM
8. ### Prove 2^(1/2) + 6^(1/2) is irrational?

• Replies: 11
• Views: 1,235
Jul 23rd 2010, 06:42 AM
9. ### Solving an equation in powers of 10

• Replies: 2
• Views: 715
Jul 23rd 2010, 05:16 AM
10. ### [SOLVED] Is the number a^(1/2) + b^(1/2) always irrational with the following conditions?

• Replies: 1
• Views: 835
Jul 23rd 2010, 04:53 AM
11. ### My guess ... easy proof ?

• Replies: 3
• Views: 705
Jul 23rd 2010, 02:28 AM
12. ### Maximal Domain Convention

• Replies: 2
• Views: 887
Jul 23rd 2010, 02:23 AM
13. ### Field norm and ideal norm

• Replies: 2
• Views: 668
Jul 22nd 2010, 08:47 PM
14. ### Repeating decimals

• Replies: 5
• Views: 1,143
Jul 22nd 2010, 08:21 PM
15. ### Help finding a clean representation of a peculiar sequence

• Replies: 3
• Views: 740
Jul 22nd 2010, 08:12 PM
16. ### [SOLVED] The area of a right triangle whose sides are integers in not a square implies ===>

• Replies: 5
• Views: 1,002
Jul 22nd 2010, 02:35 PM
17. ### Proving the binomial coeficient is always a natural number?

• Replies: 5
• Views: 1,077
Jul 21st 2010, 03:02 PM
18. ### x+xy and y+xy are perfect square, prove that x or y is perfect square.

• Replies: 1
• Views: 1,081
Jul 21st 2010, 02:24 PM
19. ### What is the basic method for proving the irrationality of a number?

• Replies: 8
• Views: 798
Jul 21st 2010, 05:57 AM
20. ### [SOLVED] Quick Quadratic Field Problem

• Replies: 8
• Views: 672
Jul 21st 2010, 04:40 AM
21. ### [SOLVED] Discrete Quadratic Fields and Integers (Easy, Yes, No Examples)

• Replies: 4
• Views: 477
Jul 21st 2010, 04:36 AM
22. ### [SOLVED] Quadratic Fields and Norms

• Replies: 3
• Views: 663
Jul 21st 2010, 02:56 AM
23. ### [SOLVED] A squarefree integers conjecture

• Replies: 3
• Views: 986
Jul 20th 2010, 10:42 PM
24. ### Induction

• Replies: 2
• Views: 634
Jul 20th 2010, 03:46 PM
25. ### Determine whether M_{23} is prime

• Replies: 1
• Views: 425
Jul 20th 2010, 01:30 PM
26. ### Prove that every natural number is either even or odd?

• Replies: 2
• Views: 1,960
Jul 20th 2010, 08:35 AM
27. ### If 'a' is rational and 'b' is irrational is 'ab' neccesarrily irrational?

• Replies: 3
• Views: 1,475
Jul 19th 2010, 05:04 PM
28. ### [SOLVED] Number of positive integers less than 550 and relatively prime to 550

• Replies: 2
• Views: 528
Jul 18th 2010, 02:57 PM
29. ### Large integers to binary format

• Replies: 10
• Views: 1,032
Jul 18th 2010, 02:00 PM

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