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# Number Theory Forum

Number Theory Help Forum

1. ### Prove that out of two consecutive integers, one is divisible by 2

• Replies: 1
• Views: 451
Feb 17th 2014, 08:13 PM
2. ### Next number in the series ?

• Replies: 1
• Views: 2,453
Feb 16th 2014, 06:56 AM
3. ### Let n be an integer greater than one. Prove that n is a perfect square i.f.f. ...

• Replies: 4
• Views: 1,055
Feb 16th 2014, 04:25 AM
4. ### divisibility

• Replies: 2
• Views: 434
Feb 15th 2014, 04:35 PM
5. ### Particular solution for diophantine equation

• Replies: 3
• Views: 588
Feb 14th 2014, 05:03 PM
6. ### difficult induction problem

• Replies: 1
• Views: 634
Feb 9th 2014, 10:04 PM
7. ### Prove by induction

• Replies: 5
• Views: 494
Feb 8th 2014, 06:49 AM
8. ### Suppose that p=2^k-1 is prime. Prove that either k=2 or k is odd.

• Replies: 1
• Views: 1,325
Feb 7th 2014, 06:01 PM
9. ### Showing that a number is rational/irrational

• Replies: 10
• Views: 816
Feb 2nd 2014, 06:04 PM
10. ### Proof by Induction with Inequalities

• Replies: 3
• Views: 385
Jan 29th 2014, 02:01 PM
11. ### Transitive law

• Replies: 1
• Views: 483
Jan 23rd 2014, 01:13 AM
12. ### divisor of 0

• Replies: 1
• Views: 541
Jan 21st 2014, 05:25 AM
13. ### An interesting algorithm

• Replies: 1
• Views: 540
Jan 10th 2014, 12:01 PM
14. ### Coding Theory - Constructing Binary (n, M, d) - Codes

• Replies: 6
• Views: 1,120
Dec 31st 2013, 12:43 AM
15. ### An example of 2 quadratic integers in the same quadratic field

• Replies: 1
• Views: 534
Dec 29th 2013, 11:56 AM
16. ### Simplifying an Infinite Composite Recursion in a System of Equations

• Replies: 4
• Views: 746
Dec 20th 2013, 10:14 PM
17. ### General tools to evaluate closed forms of series

• Replies: 3
• Views: 665
Dec 20th 2013, 05:05 PM
18. ### What is a feedback polynomial good for?

• Replies: 1
• Views: 519
Dec 20th 2013, 01:31 PM
19. ### Number theory prime divisibility problem

• Replies: 5
• Views: 946
Dec 18th 2013, 04:25 PM
20. ### 2 to even power as a sum of squares

• Replies: 1
• Views: 673
Dec 11th 2013, 08:49 PM
21. ### multiple of perfect number is abundant

• Replies: 2
• Views: 797
Dec 11th 2013, 08:22 PM
22. ### express number as infinite continued fraction

• Replies: 4
• Views: 661
Dec 10th 2013, 07:56 PM
23. ### real hadamard matrices of order 5 do not exist

• Replies: 1
• Views: 584
Dec 5th 2013, 01:47 PM
24. ### How do you factor 10001 without calculator?

• Replies: 3
• Views: 1,467
Dec 3rd 2013, 11:20 AM
25. ### gcd/lcm linear equations

• Replies: 1
• Views: 378
Dec 2nd 2013, 07:12 AM
26. ### Proof of Divisibilty propery of Fibonaccia numbers.

• Replies: 0
• Views: 379
Dec 2nd 2013, 06:24 AM
27. ### Prove (square root 2) is irrational - I have a problem with this proof.

• Replies: 17
• Views: 1,250
Dec 1st 2013, 09:39 PM
28. ### Gaussian Norms

• Replies: 1
• Views: 619
Nov 27th 2013, 06:20 PM
29. ### Calculation in Rijndael field GF(2^8) and (mod x^4+1)?

• Replies: 2
• Views: 552
Nov 27th 2013, 09:58 AM

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