is 2 1151327 - 1
has 346584 decimal digits
takes 0.034 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L6EE18289043F7EBAdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual271415.241170.4225 %1500000600000000.20144.8293 %415.442671.8509 %
Target2600.133465.0000 %50001300000.00050.7710 %0.133965.2699 %
Difference+11+415.1077+5.4225 %+1495000+59870000+0.2009+4.0583%+415.3086+6.5811 %

Known prime factors (2 factors, 165.1 bits, 0.01434331% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
11513273749090849035028445692232478.311162816074366145693
3 × 67 × 89 × 2360117 × 3856361
2016-04-272360117385636153,1700.10490.2064
11513271373086345150462992892134012786.82859630597786313662100
22 × 3 × 52 × 29 × 30243547 × 226629889
2018-08-243024354722662988913,611,6591.75962.6452

1 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2002-03-16Jossv4_computers10001000--4.30000e-50.038%
2002-03-24Jossv4_computers2000020000--0.0010.864%
2002-06-02ANONYMOUSv4_computers500001000000--0.0044.178%
2011-10-04BdotManual testing15000006000000012--0.20112.193%


Trial Factoring results:
575859606162636465666768697071
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-07-12ANONYMOUSv4_computers212560.008
2001-09-30Jossv4_computers212570.017
2001-11-14ANONYMOUSv4_computers212570.017
2003-05-04ANONYMOUSv4_computers212580.033
2016-02-23Mark RoseManual testing2582600.100
2009-04-16Sturle Sundegraun.ifi2602610.133
2011-09-29BdotManual testing2612642.825
2013-10-16David CampeauManual testing2642653.245
2014-02-22Never Odd Or EvenManual testing2652666.491
2014-02-22Never Odd Or EvenManual testing26626712.98
2014-02-22Never Odd Or EvenManual testing26726825.96
2014-02-22Never Odd Or EvenManual testing26826951.92
2014-02-22Never Odd Or EvenManual testing269270103.8
2014-04-01Never Odd Or EvenManual testing270271207.7


ECM factoring results:
Total ECM effort:17.560 GHz-days
Estimated T-Level:25.653
DigitsB1CompleteFacMiss
201100014.8320.000%
25500001.61619.863%
302500000.13187.755%
3510000000.00999.139%


ECM Summary

B1B2factorcurvesGHz-days
5000050000001866.469
50000500000020.073
500005000000963.401
25000025000000437.616


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2002-07-14ANONYMOUSv4_computers6EE18289043F7EBA0.034


PRP results:
dateuseridcompidcofactorsres64
2017-09-29Oliver KruseGTX-2
374909084903502844569223
217B9E63150A7E8E
2017-10-17Oliver KruseThreadripper-PC
374909084903502844569223
217B9E63150A7E8E
2018-01-02ATHec2-1xh
374909084903502844569223
217B9E63150A7E8E
2018-08-25ANONYMOUSdory
374909084903502844569223
137308634515046299289213401
279D6F4B2C11EE6E
2018-08-28Oliver KruseGTX-4
374909084903502844569223
137308634515046299289213401
279D6F4B2C11EE6E


CERT results:
No CERT results for M1151327


P-1 factor-bounds graph:
B1 = 1500000, B2 = 60000000 (P-1 stage 2)
B1 = 1500000 (P-1 stage 1)
B1 = 50000, B2 = 1000000 (P-1 stage 2)
B1 = 50000 (P-1 stage 1)
B1 = 20000 (P-1 stage 1)
B1 = 1000 (P-1 stage 1)
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108
102
103
104
105
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107
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109
TF factor-bounds graph:
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266
265
264
261
260
258
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256
this exponent TF target: 60
TF double-checked to: 67
ECM T-Level=25.65 ~= 69-bit
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Last modified: 2024-03-03T02:29:32+00:00