is 2 6103681 - 1
has 1837392 decimal digits
takes 1.082 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
Actual2674.868265.6716 %400000906278101.36607.5813 %6.234268.2742 %
Target2662.419665.1515 %4000045000000.07272.4240 %2.492365.9962 %
Difference+1+2.4486+0.5201 %+360000+86127810+1.2933+5.1573%+3.7419+2.2779 %

Known prime factors (2 factors, 117.5 bits, 0.00192538% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
61036819792978224572491549.79980221904
24 × 7 × 139 × 5153
-13951531.288e-50.00010.0001
61036812431616223420533836492167.72019919260389104
24 × 47 × 1019 × 25994483
2022-11-061019259944838.54000.36420.6797

1 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2022-11-06Kevin_9611PI4000009062781022167.7201.6818.292%


Trial Factoring results:
5758596061626364656667
No TF results for M6103681


ECM factoring results:
No ECM results for M6103681


Lucas-Lehmer results:
No L-L results for M6103681


PRP results:
dateuseridcompidcofactorsres64
2017-09-20kkmrkkblmbrbkManual testing
979297822457249
D5CE74AEAAE1AC0A
2018-09-19GunnarLuSierpinski
979297822457249
D5CE74AEAAE1AC0A
2023-01-08Perigbrollach
979297822457249
243161622342053383649
5E6EE3791ACEEB91


CERT results:
dateuseridcompid
2023-01-08La GüiraLa_catorce


P-1 factor-bounds graph:
B1 = 400000, B2 = 90627810 (P-1 stage 2)
B1 = 400000 (P-1 stage 1)
101
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103
104
105
106
101
102
103
104
105
106
107
108
TF factor-bounds graph:
this exponent TF target: 66
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00