is 2 11933863 - 1
has 3592451 decimal digits
takes 4.595 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
1 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP90E6635AE9C3CF__verified PRP

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2672.489964.1791%1500000300000001.70427.8395%4.194166.9873%2.8082%
PrimeNet2640.298362.5000%5500015000000.07474.1105%0.372964.0414%1.5414%
GPU722684.994664.7059%8000020000000.10312.9386%5.097765.7431%1.0372%
Difference-1-2.5047-0.5268%+1420000+28000000+1.6011+4.9009%-0.9036+1.2442%+1.2442%

Known prime factors (2 factors, 101.6 bits, 0.00085126% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
119338637518807464361111549.41731501985
5 × 37 × 47 × 3623
-4736231.013e-50.00010.0002
1193386350672038672008891652.170212303588
22 × 7 × 163 × 181 × 257
2014-07-301812575.820e-50.00010.0002

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
11933863380993302601495269891204090267931101.588
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-11-17T12:05:25nordisweet16400000400000-
skipped known factor: 751880746436111
skipped known factor: 5067203867200889
--0.223--2.403%
2021-11-19T20:47:23nordisweet1640000012000000-
skipped known factor: 751880746436111
skipped known factor: 5067203867200889
--0.576--5.935%
2021-12-05T20:30:42riccardo ubertiColab_noGPU14150000030000000-
skipped known factor: 751880746436111
skipped known factor: 5067203867200889
--1.704--7.840%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2014-07-30T11:52:00TJAOIManual testing??52.170167.92194e-69.651.66364e-5


ECM factoring results:

Old Calculation Method

Total ECM effort:11.331 GHz-days
Estimated T-Level:0.500
DigitsB1CurvesCompleteFacMiss
201100010 / 1000.10090.438%
255000010 / 2800.03696.485%

New Calculation Method

Total ECM effort:11.331 GHz-days
Estimated T-Level:0.500
DigitsB1CompleteFacMiss
20110000.43564.741%
25500000.04096.125%
302500000.00399.748%


ECM Summary

B1B2factorcurvesGHz-days
50000144000001011.33


Lucas-Lehmer results:
No L-L results for M11933863


PRP results:
dateuseridcompidcofactorsres64PRP
2021-12-04T23:44:25riccardo ubertiColab_noGPU12
751880746436111
5067203867200889
90E6635AE9C3CF__no


P-1 factor-bounds graph:
B1 = 1500000, B2 = 30000000 (P-1 stage 2)
B1 = 1500000 (P-1 stage 1)
B1 = 400000, B2 = 12000000 (P-1 stage 2)
B1 = 400000 (P-1 stage 1)
100
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100
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108
TF factor-bounds graph:
267
2
240
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2100
Last modified: 2021-12-10T02:57:46+00:00