is 2 2152369 - 1
has 647928 decimal digits
takes 0.142 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L94ED555516182410double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual270111.017568.5714 %5000000989699403051.858212.2023 %162.875772.4065 %
Target2620.285464.5161 %100008000000.00511.5181 %0.290565.0548 %
Difference+8+110.7321+4.0553 %+4990000+9896194030+51.8531+10.6842%+162.5852+7.3516 %

Known prime factors:
No known factors for M2152369

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2003-03-07ANONYMOUSv4_computers204820480012--0.0010.775%
2010-11-03JossManual testing2000020000--0.0020.711%
2010-12-30JossManual testing3000030000--0.0030.933%
2011-01-15JossManual testing5000050000--0.0051.271%
2011-01-25markrtiny12000023400006--0.0234.988%
2014-10-07JossManual testing149820149820--0.0142.217%
2016-03-20JossManual testing269676269676---2.849%
2016-04-07JossManual testing360000648000012--0.0666.899%
2017-12-12mikrMSI250000012500000012--0.87512.586%
2021-06-22Dylan Delgadolaptop-ryzen737003000000393000000--2.31214.583%
2023-01-02Architects Cubedgpu72ng50000009896994030--54.7120.224%


Trial Factoring results:
5758596061626364656667686970
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-01-29ANONYMOUSv4_computers212580.018
2016-02-23Mark RoseManual testing2582600.054
2009-01-04Sturle Sundegehry.ifi2602610.071
2009-01-06Sturle Sundegopher.ifi2612620.143
2013-01-23dbaughManual testing2622630.456
2015-03-22VictordeHollanderManual testing2632640.912
2015-03-22VictordeHollanderManual testing2642651.736
2015-12-30ramgeisManual testing2652663.472
2016-11-03Gordon SpenceManual testing2662676.944
2019-05-20TJAOIManual testing26726813.89
2021-07-29TJAOIManual testing26826927.77
2023-02-24Architects CubedGPU72_TF26927055.55


ECM factoring results:
Total ECM effort:17.756 GHz-days
Estimated T-Level:23.621
DigitsB1CompleteFacMiss
20110007.8750.038%
25500000.72448.471%
302500000.04695.540%
3510000000.00299.787%


ECM Summary

B1B2factorcurvesGHz-days
110001100000100.188
500005000070.355
50000500000018515.68
50000515000070.605
50000675000070.683
766202417689010.246


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-02-07ANONYMOUSv4_computers94ED5555161824100.142
2018-04-09kkmrkkblmbrbkold94ED5555161824100.142


PRP results:
No PRP results for M2152369


CERT results:
No CERT results for M2152369


P-1 factor-bounds graph:
B1 = 5000000, B2 = 9896994030 (P-1 stage 2)
B1 = 3000000, B2 = 393000000 (P-1 stage 2)
B1 = 2500000, B2 = 125000000 (P-1 stage 2)
B1 = 5000000 (P-1 stage 1)
B1 = 3000000 (P-1 stage 1)
B1 = 2500000 (P-1 stage 1)
B1 = 360000, B2 = 6480000 (P-1 stage 2)
B1 = 360000 (P-1 stage 1)
B1 = 269676 (P-1 stage 1)
B1 = 120000, B2 = 2340000 (P-1 stage 2)
B1 = 149820 (P-1 stage 1)
B1 = 120000 (P-1 stage 1)
B1 = 50000 (P-1 stage 1)
B1 = 30000 (P-1 stage 1)
B1 = 20000 (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
TF factor-bounds graph:
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269
268
267
266
265
264
263
262
261
260
258
this exponent TF target: 62
TF double-checked to: 67
ECM T-Level=23.62 ~= 62-bit
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Last modified: 2024-03-13T02:15:48+00:00