is 2 211007057 - 1
has 63519454 decimal digits
takes 1,853.638 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
Actual27672.528463.1579 %10000003000000032.86364.6835 %105.392064.8834 %
Target279580.232764.5570 %1300000250000000189.15534.0277 %769.388065.9845 %
Difference-3-507.7043-1.3991 %-300000-220000000-156.2916+0.6558%-663.9960-1.1011 %

Known prime factors (1 factor, 80.1 bits, 0.00003797% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
21100705713170964814941172176989432580.1243120977327061903
3 × 587 × 592309 × 2992147
2021-01-1259230929921471,160.59.210215.355

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-01-12Albrecht HeefferManual testing10000003000000022580.12435.123.545%


Trial Factoring results:
5758596061626364656667686970717273747576777879
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-05-17Architects Cubedm1_622632640.009
2011-05-19sasaki3HOME22642650.018
2013-08-13sasaki3MATE_J22652660.035
2015-10-08rob147147Manual testing2662670.071
2016-08-24XZTManual testing2672680.142
2017-11-28YxinityManual testing2682690.283
2017-12-08rubikvn2100b_com2682690.283
2017-11-28YxinityManual testing2692700.567
2019-11-14Neutron3529Manual testing2702711.133
2020-06-19SRBaseManual testing2712722.267
2020-10-20jwnutterManual testing2722734.533
2020-10-20jwnutterManual testing2732749.066
2020-10-20jwnutterManual testing27427518.13
2020-10-20jwnutterManual testing27527636.26


ECM factoring results:
No ECM results for M211007057


Lucas-Lehmer results:
No L-L results for M211007057


PRP results:
No PRP results for M211007057


CERT results:
No CERT results for M211007057


P-1 factor-bounds graph:
B1 = 1000000, B2 = 30000000 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
104
105
106
104
105
106
107
108
TF factor-bounds graph:
276
275
274
273
272
271
270
269
268
267
266
265
264
this exponent TF target: 79
TF double-checked to: 67
250
260
270
280
290
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Last modified: 2024-03-13T02:15:48+00:00