is 2 3632719 - 1
has 1093558 decimal digits
takes 0.382 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-LA45DA13C6BF67916double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26932.864368.1159 %30000000100000000012.617011.8568 %45.481371.8964 %
Target2640.979865.6250 %2200020000000.01982.0345 %0.999666.3244 %
Difference+5+31.8845+2.4909 %+29978000+998000000+12.5972+9.8223%+44.4817+5.5720 %

Known prime factors (1 factor, 72.1 bits, 0.00198375% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
363271949363371031344396291772272.064679427324702852
22 × 11 × 15441530106883
2021-07-011115441530106883263.26128,121239,295

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2009-07-06Carsten Kossendeymother20000245000--0.0051.730%
2012-01-21Squeeky_SquirrelP4_26009000016200006--0.0263.810%
2016-05-17Squeeky_SquirrelP4_2600230000667000012--0.0885.797%
2020-03-02BigBrotherWinston30000009000000012--1.17910.978%
2020-07-13axnManual testing3000000060000000012--9.29815.251%
2020-08-15axnManual testing30000000100000000012--12.6216.185%
2022-03-04JossManual testing9000090000--0.0141.453%
2022-03-22JossManual testing100000100000--0.0151.534%
2022-05-25JossManual testing100000130364850--1.3028.087%


Trial Factoring results:
57585960616263646566676869
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2016-02-23Mark RoseManual testing212600.042
2009-03-11S485122USB-Z2602610.042
2011-05-23markroldgamer2612620.085
2012-06-20GrunwalderGIMPManual testing212630.439
2016-02-23Mark RoseManual testing2622630.270
2015-01-22VictordeHollanderManual testing2632640.540
2015-01-22VictordeHollanderManual testing2642651.029
2015-10-18ramgeisManual testing2652662.057
2016-12-25Gordon SpenceManual testing2662674.114
2018-09-10TJAOIManual testing2672688.228
2020-11-05axnManual testing26826916.46


ECM factoring results:
Total ECM effort:2.943 GHz-days
Estimated T-Level:3.926
DigitsB1CompleteFacMiss
20110000.78545.600%
25500000.07392.996%
302500000.00599.542%


ECM Summary

B1B2factorcurvesGHz-days
500005000000152.081
50000675000050.862


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-01-29ANONYMOUSv4_computersA45DA13C6BF679160.382
2000-02-09ANONYMOUSv4_computersA45DA13C6BF679160.382


PRP results:
dateuseridcompidcofactorsres64
2021-07-02tottenhoff2018pc
4936337103134439629177
D3B3913DE8A3FC60


CERT results:
dateuseridcompid
2021-07-02Neil SandsFedora


P-1 factor-bounds graph:
B1 = 30000000, B2 = 1000000000 (P-1 stage 2)
B1 = 30000000, B2 = 600000000 (P-1 stage 2)
B1 = 30000000 (P-1 stage 1)
B1 = 3000000, B2 = 90000000 (P-1 stage 2)
B1 = 100000, B2 = 130364850 (P-1 stage 2)
B1 = 3000000 (P-1 stage 1)
B1 = 230000, B2 = 6670000 (P-1 stage 2)
B1 = 230000 (P-1 stage 1)
B1 = 90000, B2 = 1620000 (P-1 stage 2)
B1 = 100000 (P-1 stage 1)
B1 = 90000 (P-1 stage 1)
B1 = 20000, B2 = 245000 (P-1 stage 2)
B1 = 20000 (P-1 stage 1)
100
101
102
103
104
105
106
107
108
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
1013
1014
TF factor-bounds graph:
269
268
267
266
265
264
263
262
261
260
this exponent TF target: 64
TF double-checked to: 67
ECM T-Level=3.93 ~= -4-bit
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Last modified: 2024-02-09T03:30:02+00:00