is 2 91221743 - 1
has 27460481 decimal digits
takes 330.425 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
Actual2715.240861.9718%----5.240861.9718%0.0000%
PrimeNet2715.240861.9718%400000180000007.13725.5531%12.378164.0836%2.1118%
GPU7227583.882564.0000%600000220000009.27514.1368%93.157665.4893%1.4893%
Difference-4-78.6417-2.0282%-600000-22000000-9.2751-4.1368%-87.9167-3.5174%-3.5174%

Known prime factors (1 factor, 71.5 bits, 0.00007841% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
9122174334122988844009996270172271.53118703319911356
22 × 3 × 115987 × 13437799
2017-03-02115987134377996.03074.42137.1820

P-1 results:
No P-1 results for M91221743


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-12-29T01:50:00Architects Cubedm1_49264265--0.041--
2013-03-24T09:30:00AxelssonManual testing265266--0.082--
2013-08-29T12:16:00Norman LeyManual testing266267--0.164--
2014-04-02T04:21:00ginclass2267268--0.328--
2014-04-02T15:50:00hkskypManual testing268269--0.655--
2014-04-02T16:19:00hkskypManual testing269270--1.311--
2014-09-18T14:08:00ANONYMOUS270271--2.621--
2017-03-02T17:24:34monstManual testing271272*71.531220.790672.91.608


ECM factoring results:
No ECM results for M91221743


Lucas-Lehmer results:
No L-L results for M91221743


PRP results:
No PRP results for M91221743


P-1 factor-bounds graph:
104
105
106
104
105
106
107
108
TF factor-bounds graph:
272
271
270
269
268
267
266
265
250
260
270
280
290
2100
Last modified: 2017-03-02T17:24:34+00:00