is 2 1733177 - 1
has 521739 decimal digits
takes 0.094 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L5574D782840FE18Cdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26834.390569.1176 %18902021906494700.95778.0366 %35.348271.5995 %
Target2610.177265.5738 %70005500000.00291.3459 %0.180166.0371 %
Difference+7+34.2133+3.5439 %+1883202+190099470+0.9548+6.6907%+35.1681+5.5624 %

Known prime factors (1 factor, 70.6 bits, 0.00407248% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
173317717689134353236866933592270.583510309516951727
23 × 353 × 62853740233
2020-02-2035362853740233137.87269.38503.12

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2011-02-10Carsten Kossendeymother9500015437506--0.0144.789%
2014-04-04JossManual testing100000100000--0.0082.018%
2014-05-06JossManual testing137033137033--0.0112.335%
2014-09-10JossManual testing174066174066--0.0142.593%
2014-12-02JossManual testing211099211099--0.0172.812%
2015-01-27JossManual testing255428255428--0.0203.037%
2015-01-29JossManual testing280970280970--0.0223.153%
2015-02-11JossManual testing373970373970--0.0293.516%
2015-02-22JossManual testing411367411367--0.0323.641%
2015-03-08JossManual testing452503452503--0.0363.768%
2015-03-15JossManual testing497753497753--0.0393.898%
2015-04-08JossManual testing602280602280--0.0474.164%
2015-05-01JossManual testing728758728758--0.0574.438%
2015-05-07JossManual testing801633801633--0.0634.579%
2015-05-22JossManual testing881796881796--0.0694.721%
2015-05-26JossManual testing969975969975--0.0764.866%
2015-06-08JossManual testing10669721066972--0.0845.013%
2015-06-25JossManual testing11736691173669--0.0925.161%
2015-07-07JossManual testing12910351291035--0.1025.311%
2015-07-21JossManual testing14201381420138--0.1125.464%
2015-07-27JossManual testing15621511562151--0.1235.618%
2015-09-16JossManual testing17183661718366--0.1355.774%
2015-09-23mikrMSI364220012345678912--0.80013.492%
2018-10-03JossManual testing18902021733177012---9.778%
2018-10-11JossManual testing189020217331770012--0.88313.621%
2018-10-17JossManual testing189020219064947012--0.95813.776%


Trial Factoring results:
575859606162636465666768
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2003-02-02ANONYMOUSv4_computers212580.022
2016-02-23Mark RoseManual testing2582600.066
2010-04-24Architects Cubedm1_f22602610.089
2016-02-23Mark RoseManual testing2612620.177
2010-11-18GrunwalderGIMPManual testing212630.921
2016-02-23Mark RoseManual testing2622630.566
2015-05-05snme2pm1Manual testing2632641.133
2015-05-05snme2pm1Manual testing2642652.156
2015-09-03ramgeisManual testing2652664.312
2018-05-28TJAOIManual testing2662678.623
2019-06-24TJAOIManual testing26726817.25


ECM factoring results:
Total ECM effort:38.304 GHz-days
Estimated T-Level:25.718
DigitsB1CompleteFacMiss
201100014.6540.000%
25500001.67418.740%
302500000.14486.623%
3510000000.01099.005%


ECM Summary

B1B2factorcurvesGHz-days
50000500000024916.94
50000500000020.137
250000400000005021.23


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-01-10ANONYMOUSv4_computers5574D782840FE18C0.094
2015-07-18MadPooManual testing5574D782840FE18C0.094


PRP results:
dateuseridcompidcofactorsres64
2020-02-21Niels_Mache_NextcloudSuperDry-X
1768913435323686693359
A452ECD94A64487D
2020-02-21Jinyuan WangManual testing
1768913435323686693359
A452ECD94A64487D
2020-02-23arnaudstm-11-010
1768913435323686693359
A452ECD94A64487D


CERT results:
No CERT results for M1733177


P-1 factor-bounds graph:
B1 = 1890202, B2 = 190649470 (P-1 stage 2)
B1 = 1890202, B2 = 173317700 (P-1 stage 2)
B1 = 3642200, B2 = 123456789 (P-1 stage 2)
B1 = 3642200 (P-1 stage 1)
B1 = 1890202, B2 = 17331770 (P-1 stage 2)
B1 = 1890202 (P-1 stage 1)
B1 = 1718366 (P-1 stage 1)
B1 = 1562151 (P-1 stage 1)
B1 = 1420138 (P-1 stage 1)
B1 = 1291035 (P-1 stage 1)
B1 = 1173669 (P-1 stage 1)
B1 = 1066972 (P-1 stage 1)
B1 = 969975 (P-1 stage 1)
B1 = 881796 (P-1 stage 1)
B1 = 801633 (P-1 stage 1)
B1 = 728758 (P-1 stage 1)
B1 = 602280 (P-1 stage 1)
B1 = 497753 (P-1 stage 1)
B1 = 452503 (P-1 stage 1)
B1 = 411367 (P-1 stage 1)
B1 = 373970 (P-1 stage 1)
B1 = 280970 (P-1 stage 1)
B1 = 255428 (P-1 stage 1)
B1 = 211099 (P-1 stage 1)
B1 = 174066 (P-1 stage 1)
B1 = 95000, B2 = 1543750 (P-1 stage 2)
B1 = 137033 (P-1 stage 1)
B1 = 100000 (P-1 stage 1)
B1 = 95000 (P-1 stage 1)
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TF factor-bounds graph:
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267
266
265
264
263
262
261
260
258
this exponent TF target: 61
TF double-checked to: 67
ECM T-Level=25.72 ~= 69-bit
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Last modified: 2024-02-29T14:28:04+00:00