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#1 |
May 2017
ITALY
52×19 Posts |
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case:
N=p*q & q-p=n & n mod 8 = 0 & p+n/2=3*(2*x+1) -> 288*X-n^2-32*((N-1)/8-1)=0 288*X-(n-8)^2-32*((N-1)/8+2*(n/4-1)-1)=0 -> Example N=377 X=1152 h^2 + 64 h + 6 = 1152 k² + 32 k + 6 288*(1152 h^2 + 64 h + 6)-n^2-32*(47-1)=0 , 288*(1152 k² + 32 k + 6)-(n-8)^2-32*(47+2*(n/4-1)-1)=0 , (1152 h^2 + 64 h + 6)=(1152 k² + 32 k + 6) given n = 576 + 8 * w assigning w values from 0 to 71 we will have O (72 * 1152 ^ 2 * [Lenstra elliptic-curve factorization]) Do you think it is a good method? |
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#2 |
"Viliam Furík"
Jul 2018
Martin, Slovakia
2×13×17 Posts |
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If you show an example of it working, maybe it is good...
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#3 |
Undefined
"The unspeakable one"
Jun 2006
My evil lair
5×1,223 Posts |
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Alberico Lepore: Using N=377 is silly, stupid and pointless.
Solve the 18 digit challenge first. https://mersenneforum.org/showthread.php?t=25929 |
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#4 |
Mar 2019
149 Posts |
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#5 | |||
Feb 2017
Nowhere
25×139 Posts |
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If N is an RSA number you may assume that N = p*q.
Quote:
If N == 3, 5, or 7 (mod 8), you're done. Quote:
N == 2 (mod 3). If N == 1 (mod 3), you're done. So, you're saying that you're only interested in N == 17 (mod 24). <snip> Quote:
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#6 | |
May 2017
ITALY
7338 Posts |
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case: x odd N=377 solve (1152 h^2 + 64 h + 6)=x*(x+1)/2 , 2/3*[9*(1152 h^2 + 64 h + 6)+1+sqrt[8*[9*(1152 h^2 + 64 h + 6)+1]+1]*3*(x-1)-1]+1=Z^2 , h,x |
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#7 |
Aug 2006
135418 Posts |
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#8 |
6809 > 6502
"""""""""""""""""""
Aug 2003
101×103 Posts
19·499 Posts |
![]() ![]() Last fiddled with by Uncwilly on 2020-11-03 at 19:26 |
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