# Number Theory Forum

Number Theory Help Forum

1. ### 11111...1

• Replies: 2
• Views: 572
Feb 10th 2007, 12:05 AM
2. ### Prime Numbers

• Replies: 2
• Views: 647
Feb 9th 2007, 12:53 PM
3. ### proof

• Replies: 2
• Views: 499
Feb 7th 2007, 11:12 PM
4. ### Prove F_2n = FnLn

• Replies: 4
• Views: 1,832
Feb 5th 2007, 12:08 PM
5. ### GCD=1 Problem

• Replies: 2
• Views: 697
Feb 5th 2007, 07:04 AM
6. ### Modular arithmetic problem

• Replies: 4
• Views: 658
Feb 5th 2007, 04:44 AM
7. ### Cantor Expansion

• Replies: 1
• Views: 6,011
Feb 5th 2007, 04:06 AM
8. ### Proving irrationality

• Replies: 2
• Views: 725
Feb 5th 2007, 03:35 AM
9. ### Help to prove Primes

• Replies: 4
• Views: 1,654
Feb 4th 2007, 04:11 PM
10. ### Division problem with GCD

• Replies: 4
• Views: 810
Feb 4th 2007, 01:15 PM
11. ### mathematical induction?

• Replies: 2
• Views: 580
Jan 31st 2007, 10:09 AM
12. ### Decimal Palindromic Integer

• Replies: 4
• Views: 932
Jan 29th 2007, 07:17 PM
13. ### Divisibility Rules

• Replies: 3
• Views: 986
Jan 29th 2007, 10:20 AM
14. ### Find Next Integer

• Replies: 3
• Views: 638
Jan 24th 2007, 11:26 AM
15. ### Division Problem

• Replies: 5
• Views: 810
Jan 19th 2007, 06:20 AM
16. ### GMAT questions

• Replies: 8
• Views: 721
Jan 18th 2007, 01:21 PM
17. ### 2^n is incongruent to 1 (mod n)

• Replies: 1
• Views: 890
Jan 13th 2007, 02:11 PM
18. ### congruent mod 9

• Replies: 2
• Views: 1,193
Jan 11th 2007, 07:07 PM
19. ### x^3+2x^2-x+5

• Replies: 4
• Views: 912
Jan 11th 2007, 03:42 PM
20. ### Prove L_n = L_n-1 + L_n-2 for n >= 3, where L_n are Lucas numbers.

• Replies: 3
• Views: 824
Jan 10th 2007, 05:34 AM
21. ### Fibonacci numbers from Pascal's triangle

• Replies: 7
• Views: 2,179
Jan 6th 2007, 06:46 PM
22. ### 2 Proof Questions

• Replies: 19
• Views: 1,553
Jan 3rd 2007, 07:46 PM
23. ### The largest number N

• Replies: 1
• Views: 712
Jan 3rd 2007, 12:52 PM
24. ### x^3+y^3=z^3

• Replies: 1
• Views: 856
Jan 3rd 2007, 11:22 AM
25. ### phi(n)=2^31

• Replies: 4
• Views: 617
Jan 2nd 2007, 01:28 PM
26. ### Miller's test to base 2

• Replies: 0
• Views: 973
Jan 2nd 2007, 10:57 AM
27. ### Gcd in Gaussian integers

• Replies: 4
• Views: 1,756
Jan 2nd 2007, 10:30 AM
28. ### Gcd

• Replies: 5
• Views: 707
Jan 1st 2007, 10:54 AM
29. ### Are half of all natural numbers even?

• Replies: 13
• Views: 1,010
Dec 31st 2006, 10:08 AM
30. ### primitive root

• Replies: 2
• Views: 589
Dec 30th 2006, 02:21 PM

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