is 2 367687 - 1
has 110685 decimal digits
takes 0.004 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L1C46AE2CE3573CBBdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26780.813171.6418 %100000084035105706.449210.8169 %87.262374.7093 %
Target2440.000056.8182 %65009500000.000812.4858 %0.000862.2098 %
Difference+23+80.8131+14.8236 %+993500+8402560570+6.4484-1.6689 %+87.2615+12.4995 %

Known prime factors (1 factor, 78.2 bits, 0.02125894% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
3676873391736091581376389058712478.166461226000862333505
5 × 29 × 113 × 1672 × 1009332817
2009-11-20278891009332817166,4910.77341.4438

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2002-06-15ANONYMOUSv4_computers32768327680012--0.00321.496%
2002-08-24ANONYMOUSv4_computers65536655360012--0.00624.130%
2024-02-17Denial140i5-840010000008403510570
skipped known factor: 339173609158137638905871
--5.59044.985%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2001-03-11ANONYMOUSv4_computers212560.026
2002-02-10ANONYMOUSv4_computers212570.052
2004-01-18ANONYMOUSv4_computers212580.104
2009-01-05Sturle Sundeakerman.ifi2582590.104
2009-01-23Sturle Sundegiacco.ifi2592600.209


ECM factoring results:
Total ECM effort:10.420 GHz-days
Estimated T-Level:26.434
DigitsB1CompleteFacMiss
201100023.8600.000%
25500003.0254.858%
302500000.28775.066%
3510000000.02297.833%
4030000000.00199.860%


ECM Summary

B1B2factorcurvesGHz-days
10.009
5000050000002802.859
250000250000001447.552


Lucas-Lehmer results:
No L-L results for M367687


PRP results:
dateuseridcompidcofactorsres64
2017-09-23Oliver KruseOllaptop
339173609158137638905871
0AA660FD4A8BECEC
2017-11-02kkmrkkblmbrbkc4.xlarge
339173609158137638905871
0AA660FD4A8BECEC
2020-04-18Oliver KruseAddPrpType5
339173609158137638905871
94CF9805DCEED666


CERT results:
No CERT results for M367687


P-1 factor-bounds graph:
B1 = 1000000, B2 = 8403510570 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 65536, B2 = 6553600 (P-1 stage 2)
B1 = 32768, B2 = 3276800 (P-1 stage 2)
B1 = 65536 (P-1 stage 1)
B1 = 32768 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
260
259
258
257
256
this exponent TF target: 44
TF double-checked to: 67
ECM T-Level=26.43 ~= 71-bit
250
260
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280
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Last modified: 2024-02-29T14:28:04+00:00