is 2 11933837 - 1
has 3592443 decimal digits
takes 4.595 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP041B92702EDFA9ABPRP-tested

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2672.489964.1791%400000120000000.57615.9352%3.066066.3052%2.1260%
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%+320000+10000000+0.4731+2.9966%-2.0317+0.5621%+1.0889%

Known prime factors (3 factors, 159.2 bits, 0.00133373% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1193383771603023826.0943
3
-137.496e-136.191e-71.136e-6
11933837694011849288764795832065.9122907748150443
32 × 323083127827
2019-07-1093230831278270.95339,826.618,353
119338371649006539802254174872167.1606908953674339
32 × 17 × 257 × 1063 × 165293
2021-11-1510631652933.12910.00560.0094

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
1193383749693346406895959317405794092892.005
11933837118073853196611221135062632012993.254
119338371144430078177429551057830730010100666792141133.072
1193383781944653209630286225273528091020028276630072518348159.165
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-11-17T11:54:05nordisweet164000004000002167.1600.2239.1890.4472.403%
2021-11-19T20:36:46nordisweet1640000012000000-
skipped known factor: 71603023
skipped known factor: 164900653980225417487
--0.576--5.935%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2019-07-10T07:18:59TJAOIManual testing265266*65.912200.3429.3510.696
2022-04-07T22:21:10James HeinrichManual testing266267--1.252--
2021-11-15T12:10:05TJAOIManual testing267268*67.160210.6399.3511.301


ECM factoring results:
No ECM results for M11933837


Lucas-Lehmer results:
No L-L results for M11933837


PRP results:
dateuseridcompidcofactorsres64PRP
2021-12-04T18:26:19LaurVZero818
71603023
69401184928876479583
164900653980225417487
041B92702EDFA9ABno


P-1 factor-bounds graph:
B1 = 400000, B2 = 12000000 (P-1 stage 2)
B1 = 400000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-04-07T22:21:10+00:00