is 2 3714089 - 1
has 1118053 decimal digits
takes 0.390 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L8F5E596F60130522double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26816.048367.6471%10000001303648501.22577.7180%17.274070.1441%2.4970%
PrimeNet2600.041463.3333%160003200000.00503.0857%0.046364.4648%1.1314%
GPU722640.958365.6250%220004500000.00692.1070%0.965266.3493%0.7243%
Difference+4+15.0900+2.0221%+978000+129914850+1.2188+5.6110%+16.3087+3.7948%+1.7727%

Known prime factors (3 factors, 287.3 bits, 0.00773430% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
371408916425943288481679513372270.476221130178739412
22 × 3 × 6691 × 49499 × 55639
2012-12-104949955639117.180.00760.0153
371408998196392162994233524417272583.0221321944522102112167
32 × 72 × 47 × 853 × 2917 × 25632521
2022-05-25291725632521592,1640.21310.3972
37140891844492345181708715873674681767165671192741133.7602483101973568361872687588641208067
97 × 5992 × 18341 × 32687 × 292849 × 620827 × 654571
2022-10-036208276545713.841e+100.09480.1924

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
37140891612968368802850122534867184393941210626423899947153.498
371408930297526657993321597118101213356030150619043491741
869163496399
62204.237
371408918112249366910399633829547950061772133721787137884
0128623693377929
66216.782
371408929751078092770842762378961276240656801140566335970
1568594683988303339372468493221841073
87287.259
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2009-07-06T10:48:00Carsten Kossendeyleela20000265000---0.005--0.988%
2012-12-10T14:56:00Squeeky_SquirrelT7500_22002450002450002270.4760.0370.7800.0751.426%
2022-03-05T02:46:23Jocelyn LaroucheManual testing9000090000-
skipped known factor: 1642594328848167951337
--0.014--0.832%
2022-03-22T09:36:53Jocelyn LaroucheManual testing100000100000-
skipped known factor: 1642594328848167951337
--0.015--0.885%
2022-05-25T10:52:58Jocelyn LaroucheManual testing1000001303648502583.0221.0960.7802.1925.410%
2022-10-02T23:42:43Jocelyn LaroucheManual testing1000000100000041133.7600.1520.7800.3052.603%
2022-10-04T13:26:58Jocelyn LaroucheManual testing1000000130364850-
skipped known factor: 1642594328848167951337
skipped known factor: 9819639216299423352441727
skipped known factor: 18444923451817087158736746817671656711927
--1.226--7.718%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-02-12T00:00:00ANONYMOUSv4_computers21260--0.041--
2009-03-07T07:42:00S485122USB-A260261--0.041--
2011-04-19T14:11:00Grant McCrackenthumper261262--0.083--
2012-04-19T23:28:00GrunwalderGIMPManual testing21263--0.430--
2022-06-16T03:06:54LordJuliusManual testing263264--0.529--
2022-06-16T03:06:54LordJuliusManual testing264265--1.006--
2022-06-16T03:06:54LordJuliusManual testing265266--2.012--
2022-06-16T03:06:54LordJuliusManual testing266267--4.024--
2022-01-22T17:08:43Jocelyn LaroucheManual testing267268--8.048--


ECM factoring results:
Total ECM effort:0.895 GHz-days
Estimated T-Level:1.154
DigitsB1CompleteFacMiss
20110000.23179.392%
25500000.02197.887%
302500000.00199.865%


ECM Summary

B1B2factorcurvesGHz-days
50000500000060.895


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-03-09T00:00:00ANONYMOUSv4_computers8F5E596F601305220.390
1999-08-31T00:00:00ari.ornv4_computers8F5E596F601305220.390


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-20T17:02:21kkmrkkblmbrbkManual testing
1642594328848167951337
BDFB51F7E00A38__no
2017-12-01T08:45:57Oliver KruseThreadripper
1642594328848167951337
BDFB51F7E00A38__no
2022-05-31T08:00:44XZT3050Micro1
1642594328848167951337
9819639216299423352441727
20175DE97E603993no
2022-10-05T07:03:28LordJuliusWhiteBox
1642594328848167951337
9819639216299423352441727
18444923451817087158736746817671656711927
20175DE97E603993no


P-1 factor-bounds graph:
B1 = 1000000, B2 = 130364850 (P-1 stage 2)
B1 = 100000, B2 = 130364850 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 245000 (P-1 stage 1)
B1 = 100000 (P-1 stage 1)
B1 = 90000 (P-1 stage 1)
B1 = 20000, B2 = 265000 (P-1 stage 2)
B1 = 20000 (P-1 stage 1)
102
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105
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109
TF factor-bounds graph:
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Last modified: 2022-10-05T07:03:28+00:00