is 2 3050681 - 1
has 918347 decimal digits
takes 0.260 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L012BCC9A113D3607double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual271156.712069.0141 %910000023384104380158.291413.3495 %315.003473.1506 %
Target2641.166765.6250 %1400011000000.00901.4650 %1.175866.1286 %
Difference+7+155.5453+3.3891 %+9086000+23383004380+158.2823+11.8845%+313.8276+7.0220 %

Known prime factors:
No known factors for M3050681

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2004-02-07ANONYMOUSv4_computers2048204800--0.0020.571%
2010-10-04markrtiny11000024475006--0.0294.196%
2016-03-16Squeeky_SquirrelP4_2600205000568875012--0.0625.424%
2017-09-26mikrMSI300000010000000012--1.02210.971%
2022-12-30Sid & AndyHockey_Puck910000023384104380--195.320.324%


Trial Factoring results:
575859606162636465666768697071
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2001-06-03David Campeauv4_computers212600.025
2009-02-12Sturle Sundegouffy.ifi2602610.050
2011-03-18Sid & AndyBuzz2612620.101
2013-01-07dbaughManual testing2622630.322
2015-02-07VictordeHollanderManual testing2632651.868
2015-06-06ThaManual testing2652662.450
2017-05-06Gordon SpenceManual testing2662674.899
2018-07-25ramgeisManual testing2672689.80
2021-03-25TJAOIManual testing26826919.60
2022-05-04mikrManual testing26927039.19
2022-06-25mikrManual testing27027178.39


ECM factoring results:
Total ECM effort:17.524 GHz-days
Estimated T-Level:22.240
DigitsB1CompleteFacMiss
20110004.8110.814%
25500000.44863.888%
302500000.02897.203%
3510000000.00199.867%


ECM Summary

B1B2factorcurvesGHz-days
5000050000008910.26
50000635000070.912
50000700000071.183
500007019185101.372
500003113019083.797


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-05-30ANONYMOUSv4_computers012BCC9A113D36070.260


PRP results:
No PRP results for M3050681


CERT results:
No CERT results for M3050681


P-1 factor-bounds graph:
B1 = 9100000, B2 = 23384104380 (P-1 stage 2)
B1 = 9100000 (P-1 stage 1)
B1 = 3000000, B2 = 100000000 (P-1 stage 2)
B1 = 3000000 (P-1 stage 1)
B1 = 205000, B2 = 5688750 (P-1 stage 2)
B1 = 110000, B2 = 2447500 (P-1 stage 2)
B1 = 205000 (P-1 stage 1)
B1 = 110000 (P-1 stage 1)
B1 = 2048, B2 = 204800 (P-1 stage 2)
B1 = 2048 (P-1 stage 1)
102
103
104
105
106
107
102
103
104
105
106
107
108
109
1010
1011
TF factor-bounds graph:
271
270
269
268
267
266
265
263
262
261
260
this exponent TF target: 64
TF double-checked to: 67
ECM T-Level=22.24 ~= 57-bit
250
260
270
280
JSON version of this page
Last modified: 2024-03-13T02:15:48+00:00