is 2 104983939 - 1
has 31603315 decimal digits
takes 418.004 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
Actual277291.550964.9351 %830000161850009.62173.4076 %301.172666.1299 %
Target276145.774664.4737 %65000012000000041.29373.9269 %187.068465.8688 %
Difference+1+145.7763+0.4614 %+180000-103815000-31.6720-0.5194 %+114.1043+0.2612 %

Known prime factors (1 factor, 79.5 bits, 0.00007570% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1049839398398690821652293851481672479.4753999988427588097
3 × 72 × 19 × 263 × 6079 × 895777
2020-05-0460798957772,104.50.31490.5263

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2020-05-04Architects CubedColab_A383000016185000622479.4759.913.752%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-04-20lindedskynet-node0312632640.019
2010-09-04Richardsvn_022642650.036
2012-05-09carlos56amd60002652660.071
2013-09-09willmoreManual testing2662670.142
2013-09-18Per Jessenbeaufort12672680.285
2014-05-10roemer2201HPCC-AMD2682690.569
2014-07-13PascalBieriManual testing2692701.139
2014-07-17PascalBieriManual testing2702712.278
2015-01-09C.D.B.i7-3770K_4200MHz2712724.556
2019-10-27Daniel BrockwellManual testing2722739.111
2020-02-08Team_InspectorManual testing27327418.22
2020-04-26TheJudgerManual testing274277255.1


ECM factoring results:
No ECM results for M104983939


Lucas-Lehmer results:
No L-L results for M104983939


PRP results:
No PRP results for M104983939


CERT results:
No CERT results for M104983939


P-1 factor-bounds graph:
B1 = 830000, B2 = 16185000 (P-1 stage 2)
B1 = 830000 (P-1 stage 1)
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103
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105
106
102
103
104
105
106
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108
TF factor-bounds graph:
277
274
273
272
271
270
269
268
267
266
265
264
this exponent TF target: 76
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00