is 2 103558199 - 1
has 31174125 decimal digits
takes 412.327 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-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual276147.781664.4737 %7540002238400011.15673.9448 %158.938365.8751 %
Target276147.781664.4737 %65000011000000038.14833.8568 %185.929965.8439 %
Difference---+104000-87616000-26.9916+0.0880%-26.9916+0.0312 %

Known prime factors (1 factor, 76.9 bits, 0.00007430% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1035581991455994888201292901184632476.946702983878756569
33 × 641 × 53279 × 762373
2021-04-1853279762373276.660.53060.6260

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-04-18tottenhoffi7-8700k-01754000223840001222476.94611.163.945%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-04-17subgeniusvideodemo2632640.019
2010-08-23CommasterCore-i72642650.036
2012-05-03Richard2652660.072
2013-09-07processinfoManual testing2662670.144
2013-09-15processinfoManual testing2672680.289
2014-05-08benthomasS012682690.577
2014-05-13Roger KohnActionClarifies2692701.155
2015-02-01JustinManual testing2702712.309
2019-01-20Niels_Mache_NextcloudManual testing2712724.618
2019-10-06Niels_Mache_NextcloudManual testing27227427.71
2020-12-29Mark RoseManual testing274276110.8


ECM factoring results:
No ECM results for M103558199


Lucas-Lehmer results:
No L-L results for M103558199


PRP results:
No PRP results for M103558199


CERT results:
No CERT results for M103558199


P-1 factor-bounds graph:
B1 = 754000, B2 = 22384000 (P-1 stage 2)
B1 = 754000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
TF factor-bounds graph:
276
274
272
271
270
269
268
267
266
265
264
this exponent TF target: 76
TF double-checked to: 67
250
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Last modified: 2024-03-13T02:15:48+00:00