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2003-09-15, 20:07   #12
NickGlover

Aug 2002
Richland, WA

13210 Posts

Quote:
 Originally posted by smh If it takes 1 minute to test for 6 missing digits it will take about 190 years to test for 14 missing digits. I't might be faster to rerun P-1 with high memory limits to see if the factor can be found again.
GP2 was implying that the three factors in question might be bogus. I was simply pointing out that he had not done enough testing to be sure of that.

We have the smallest factors of the exponents in question which I'm fairly certain did come from P-1. There is no need to redo the P-1 test unless someone really wants to see the original composite factor that was found.

Last fiddled with by NickGlover on 2003-09-15 at 20:09

2003-09-15, 21:18   #13
GP2

Sep 2003

2,579 Posts

Quote:
 Originally posted by Xyzzy I can run those P-1s if someone tells me what the worktodo.ini line should be... (I can't use Pfactor because I don't know what bit depth they were trial factored to, and I can't use Pminus1 because I don't know what bounds were used!)
Actually, I already started those P-1s on my machine.
No factor for the first one, second one will complete soon.

You can find out the depth that an exponent has been trial-factored to by doing:

unzip nofactor.zip # creates the file NOFACTOR.CMP

# Output lines of the form exponent,depth
# for all exponents between exponent1 and exponent2
# Output goes into a file called "nofactor"

decomp -n exponent1 exponent2

For those two exponents, they were both trial-factored to 65 bits.

But as I said, I already started the P-1 for those 2 exponents.

Last fiddled with by GP2 on 2003-09-15 at 21:19

 2003-09-15, 21:56 #14 NickGlover     Aug 2002 Richland, WA 8416 Posts Just to be clear, the exponents I am talking about, which do not need P-1 factoring are: Code:  8276539 103 DF 7411192628700266363789140779170 18-Nov-02 00:48 Team_Prime_Rib Tasuke18 17699497 103 F 8254656556609760068242738155742 26-Mar-03 08:12 Team_Prime_Rib KL_MLChan 18129493 103 F 8754500160125057908417949485956 24-Feb-03 07:26 curtisc wde3100-09 The three above exponents all have factors listed in George's files. I think GP2 is re-running the P-1 factoring on: Code: 15370879 103 F 7757301118393895425291596492654 19-Sep-02 15:40 S09625 C2EE070A4 15729167 102 F 4489874295809814634906444128101 20-Sep-02 12:17 S09625 C2EE070A4 For these, bogus factors were returned, so it is a good idea to re-run P-1.
 2003-09-16, 03:07 #15 GP2     Sep 2003 257910 Posts M15370879 completed P-1, B1=195000, B2=4582500 M15729167 completed P-1, B1=195000, B2=4728750 No factors found.

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