# Number Theory Forum

Number Theory Help Forum

1. ### Find Next Integer

• Replies: 3
• Views: 801
Jan 24th 2007, 11:26 AM
2. ### Division Problem

• Replies: 5
• Views: 856
Jan 19th 2007, 06:20 AM
3. ### GMAT questions

• Replies: 8
• Views: 793
Jan 18th 2007, 01:21 PM
4. ### 2^n is incongruent to 1 (mod n)

• Replies: 1
• Views: 936
Jan 13th 2007, 02:11 PM
5. ### congruent mod 9

• Replies: 2
• Views: 1,392
Jan 11th 2007, 07:07 PM
6. ### x^3+2x^2-x+5

• Replies: 4
• Views: 940
Jan 11th 2007, 03:42 PM
7. ### Prove L_n = L_n-1 + L_n-2 for n >= 3, where L_n are Lucas numbers.

• Replies: 3
• Views: 895
Jan 10th 2007, 05:34 AM
8. ### Fibonacci numbers from Pascal's triangle

• Replies: 7
• Views: 2,386
Jan 6th 2007, 06:46 PM
9. ### 2 Proof Questions

• Replies: 19
• Views: 1,783
Jan 3rd 2007, 07:46 PM
10. ### The largest number N

• Replies: 1
• Views: 775
Jan 3rd 2007, 12:52 PM
11. ### x^3+y^3=z^3

• Replies: 1
• Views: 932
Jan 3rd 2007, 11:22 AM
12. ### phi(n)=2^31

• Replies: 4
• Views: 675
Jan 2nd 2007, 01:28 PM
13. ### Miller's test to base 2

• Replies: 0
• Views: 1,058
Jan 2nd 2007, 10:57 AM
14. ### Gcd in Gaussian integers

• Replies: 4
• Views: 1,855
Jan 2nd 2007, 10:30 AM
15. ### Gcd

• Replies: 5
• Views: 895
Jan 1st 2007, 10:54 AM
16. ### Are half of all natural numbers even?

• Replies: 13
• Views: 1,075
Dec 31st 2006, 10:08 AM
17. ### primitive root

• Replies: 2
• Views: 630
Dec 30th 2006, 02:21 PM
18. ### An other question need yr urgent help - proving a theorem!

• Replies: 1
• Views: 710
Dec 27th 2006, 06:31 AM
19. ### sequence of f_n

• Replies: 4
• Views: 650
Dec 26th 2006, 09:01 AM
20. ### 1983 AIME question

• Replies: 7
• Views: 958
Dec 26th 2006, 01:37 AM
21. ### A multiple of 17

• Replies: 1
• Views: 867
Dec 25th 2006, 10:08 AM

• Replies: 5
• Views: 753
Dec 25th 2006, 08:53 AM
23. ### repunits

• Replies: 5
• Views: 640
Dec 25th 2006, 08:51 AM
24. ### how should I solve this question? number of divisors

• Replies: 5
• Views: 1,262
Dec 25th 2006, 08:43 AM
25. ### for PH and others so inclined

• Replies: 3
• Views: 1,080
Dec 23rd 2006, 12:54 AM
26. ### Pythagorean Triples

• Replies: 3
• Views: 721
Dec 19th 2006, 08:49 PM
27. ### Another Diophantine Question

• Replies: 1
• Views: 625
Dec 19th 2006, 06:10 AM

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