is 2 502000027 - 1
has 151117066 decimal digits
takes 12,142.126 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
Actual2821,951.128964.6341 %40550004055000142.21651.9540 %2,093.345465.3252 %
Target2821,951.128964.6341 %30000006500000001,341.51134.4279 %3,292.640266.2001 %
Difference---+1055000-645945000-1,199.2949-2.4739 %-1,199.2949-0.8749 %

Known prime factors (1 factor, 110.7 bits, 0.00002205% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
502000027210747274847281298944544775258412134110.6992099076329803477270973780
22 × 5 × 3089 × 12569 × 21617 × 113777 × 1099081
2018-06-141137771099081255,738,4165.87318.1211

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2018-06-14KrieselManual testing40550004055000134110.699148.31.954%


Trial Factoring results:
5758596061626364656667686970717273747576777879808182
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-03-14Architects CubedManual testing2632640.004
2011-12-23LingUaanDeOideGraxn2642650.007
2014-09-06rudimeierurvasi2652660.015
2014-09-06rudimeierurvasi2662670.030
2014-09-06rudimeierurvasi2672680.060
2014-09-06rudimeierurvasi2682690.119
2014-09-06rudimeierurvasi2692700.238
2014-09-06rudimeierurvasi2702710.476
2014-09-06rudimeierurvasi2712720.953
2014-09-07rudimeierurvasi2722731.905
2014-09-07rudimeierurvasi2732743.811
2014-09-09rudimeierurvasi2742757.622
2014-09-12rudimeierurvasi27527615.24
2014-09-18rudimeierurvasi27627730.49
2014-10-11rudimeierurvasi27727860.97
2018-04-05KrieselManual testing278279121.9
2018-04-05KrieselManual testing279280243.9
2018-04-05KrieselManual testing280281487.8
2018-04-05KrieselManual testing281282975.6


ECM factoring results:
No ECM results for M502000027


Lucas-Lehmer results:
No L-L results for M502000027


PRP results:
No PRP results for M502000027


CERT results:
No CERT results for M502000027


P-1 factor-bounds graph:
B1 = 4055000 (P-1 stage 1)
104
105
106
107
104
105
106
107
TF factor-bounds graph:
282
281
280
279
278
277
276
275
274
273
272
271
270
269
268
267
266
265
264
this exponent TF target: 82
TF double-checked to: 67
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2120
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Last modified: 2024-03-13T02:15:48+00:00