is 2 103304581 - 1
has 31097778 decimal digits
takes 411.317 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
Actual276148.144464.4737 %8600001784500010.30763.8343 %158.452065.8359 %
Target276148.144464.4737 %65000011000000038.14833.8557 %186.292765.8435 %
Difference---+210000-92155000-27.8407-0.0214 %-27.8407-0.0076 %

Known prime factors (1 factor, 79.1 bits, 0.00007653% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1033045816294320570520270881522172479.0583046486665736668
22 × 3 × 72 × 11 × 149 × 839 × 3767741
2021-03-3083937677411,659.21.18972.2135

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-03-30nranksNR-GM86000017845000622479.05810.623.834%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-04-16sasaki3asort2632640.019
2010-08-22Architects Cubedi4l_12642650.036
2012-04-28Andrew Bdell_xps_172652660.072
2013-09-07processinfoManual testing2662670.145
2014-07-07ANONYMOUSManual testing2672680.289
2014-07-10Ryan PropperManual testing2682714.051
2017-11-28el groccoManual testing2712724.630
2019-11-25Niels_Mache_NextcloudManual testing27227427.78
2020-12-05RichD0Manual testing27427537.04
2020-12-16tServoManual testing27527674.07


ECM factoring results:
No ECM results for M103304581


Lucas-Lehmer results:
No L-L results for M103304581


PRP results:
No PRP results for M103304581


CERT results:
No CERT results for M103304581


P-1 factor-bounds graph:
B1 = 860000, B2 = 17845000 (P-1 stage 2)
B1 = 860000 (P-1 stage 1)
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108
TF factor-bounds graph:
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274
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268
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264
this exponent TF target: 76
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00