is 2 91131653 - 1
has 27433362 decimal digits
takes 330.099 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual277335.867664.9351%6850006850003.59781.2807%339.465365.3841%0.4491%
PrimeNet2715.246061.9718%400000180000007.13725.5525%12.383264.0833%2.1115%
GPU7227583.965464.0000%600000220000009.27514.1364%93.240565.4891%1.4891%
Difference+2+251.9021+0.9351%+85000-21315000-5.6773-2.8557%+246.2248-0.1049%-0.1049%

Known prime factors (1 factor, 87.1 bits, 0.00009561% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
911316531692464334481987774076471992787.129928582045187958883
113 × 139 × 277 × 419 × 2957 × 172259		2019-04-012957172259472,1970.06400.0921

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2019-04-02T02:15:30Jwb52zClay6850006850002787.1293.598660.27.1961.281%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-12-26T18:20:00Architects Cubedm1_67264265--0.041--
2011-11-04T00:14:00Shadowjd007Manual testing265266--0.082--
2014-04-08T08:15:00SWL551Manual testing266267--0.164--
2014-04-08T08:15:00SWL551Manual testing267268--0.328--
2014-04-08T08:15:00SWL551Manual testing268269--0.656--
2014-04-08T08:15:00SWL551Manual testing269270--1.312--
2014-09-05T17:55:00shaugeManual testing270271--2.624--
2017-02-24T07:00:28monstManual testing271272--5.248--
2018-01-09T18:20:071997rj7Manual testing272273--10.50--
2018-01-09T18:20:071997rj7Manual testing273274--20.99--
2018-12-09T18:19:46TheJudgerManual testing274275--41.98--
2018-12-09T18:19:46TheJudgerManual testing275276--83.97--
2019-03-03T17:40:30TheJudgerManual testing276277--167.9--


ECM factoring results:
No ECM results for M91131653


Lucas-Lehmer results:
No L-L results for M91131653


PRP results:
No PRP results for M91131653


P-1 factor-bounds graph:
B1 = 685000 (P-1 stage 1)
102
103
104
105
106
102
103
104
105
106
TF factor-bounds graph:
277
276
275
274
273
272
271
270
269
268
267
266
265
250
260
270
280
290
2100
Last modified: 2019-04-02T02:15:30+00:00