is 2 9901 - 1
has 2981 decimal digits
takes 0.000 GHz-days to do one PRP test
Has been fully factored.
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-
Cofactor is a certified prime

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2673,001.102779.1045 %----3,001.102779.1045 %
Target2440.000268.1818 %500500000.00001.2600 %0.000268.5827 %
Difference+23+3,001.1024+10.9227 %-500-500000.0000-1.2600 %+3,001.1024+10.5218 %

Known prime factors (7 factors, 9,901.0 bits, 100.00000000% known):
Remaining cofactor is a certified-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
9901877704640091136.3534432404
22 × 3 × 431 × 857
-4318571.290e-68.031e-81.551e-7
990145127178214713087591961.969227892022092279
33 × 101 × 83568764977
2009-03-051018356876497735.7190.80511.5036
990183369985512797840915512272.820421018005821623275
3 × 52 × 13 × 83 × 5202570353063
2009-03-05835202570353063178,45550.12093.609
990110176887520416496607667932579.75251393230584872722996
22 × 37 × 83 × 4183753710914419
2009-03-0583418375371091441913,158,00540,30575,278
9901251461173026144353827877714012994.3441269877653904375082455700
22 × 52 × 7 × 97 × 158776003 × 117789679961
2009-03-051587760031177896799616.385e+111.16132.1194
9901150244068907652762036060661762359934110.21175873178925185719642490991699
101 × 131 × 1231 × 4658408377218735413459
2009-03-05123146584083772187354134591.440e+134.488e+108.382e+10
9901
click to show decimal representation
2,8449,445.5512009-03-05

57 Composite Factors:
P-1 results:
No P-1 results for M9901


Trial Factoring results:
5758596061626364656667
No TF results for M9901


ECM factoring results:
Total ECM effort:0.001 GHz-days
DigitsB1CompleteFacMiss


ECM Summary

B1B2factorcurvesGHz-days
10.000
10.000
10.000
10.000
10.000


Lucas-Lehmer results:
No L-L results for M9901


PRP results:
dateuseridcompidcofactorsres64
2017-11-09kkmrkkblmbrbkc4.large
87770464009
4512717821471308759
8336998551279784091551
1017688752041649660766793
25146117302614435382787771401
1502440689076527620360606617623599
Probable Prime!


CERT results:
No CERT results for M9901


P-1 factor-bounds graph:
100
101
102
103
104
105
106
107
108
109
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
TF factor-bounds graph:
this exponent TF target: 44
TF double-checked to: 67
250
260
270
280
290
2100
2110
2120
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Last modified: 2024-03-13T02:15:48+00:00