is 2 7144129 - 1
has 2150598 decimal digits
takes 1.558 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L3D0233C24CE24166double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual272133.862968.0556 %1993731283122840049.36799.4217 %183.230871.0653 %
Target2674.159265.6716 %4500050000000.09962.3075 %4.258866.4638 %
Difference+5+129.7037+2.3839 %+1948731+2826228400+49.2683+7.1142%+178.9720+4.6015 %

Known prime factors:
No known factors for M7144129

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2001-11-14ANONYMOUSv4_computers35000358750--0.0171.653%
2011-12-22James Heinrich3930K13500029025006--0.0903.634%
2022-01-22LaurVZero81819937311993731--0.5863.989%
2022-01-23LaurVZero81819937312831228400--54.8513.576%


Trial Factoring results:
57585960616263646566676869707172
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-03-15ANONYMOUSv4_computers212620.043
2001-11-14ANONYMOUSv4_computers212630.137
2014-02-02NesowaManual testing2632640.275
2014-02-06lycornManual testing2642650.523
2015-06-21VictordeHollanderManual testing2652661.046
2016-10-23Gordon SpenceManual testing2662672.092
2018-07-24ramgeisManual testing2672684.184
2020-03-20TJAOIManual testing2682698.368
2021-08-19SRBaseManual testing26927016.74
2021-08-31SRBaseManual testing27027133.47
2021-09-26SRBaseManual testing27127266.94


ECM factoring results:
Total ECM effort:1.989 GHz-days
Estimated T-Level:1.154
DigitsB1CompleteFacMiss
20110000.23179.392%
25500000.02197.887%
302500000.00199.865%


ECM Summary

B1B2factorcurvesGHz-days
50000500000061.989


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-05-09ANONYMOUSv4_computers3D0233C24CE241661.558
2002-04-14ANONYMOUSv4_computers3D0233C24CE241661.558


PRP results:
No PRP results for M7144129


CERT results:
No CERT results for M7144129


P-1 factor-bounds graph:
B1 = 1993731, B2 = 2831228400 (P-1 stage 2)
B1 = 1993731 (P-1 stage 1)
B1 = 135000, B2 = 2902500 (P-1 stage 2)
B1 = 135000 (P-1 stage 1)
B1 = 35000, B2 = 358750 (P-1 stage 2)
B1 = 35000 (P-1 stage 1)
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104
105
106
107
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
272
271
270
269
268
267
266
265
264
263
262
this exponent TF target: 67
TF double-checked to: 67
ECM T-Level=1.15 ~= -13-bit
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Last modified: 2024-03-13T02:15:48+00:00