is 2 7432129 - 1
has 2237294 decimal digits
takes 1.621 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L0196434407AD08B7double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual272128.675668.0556 %310000011007976980190.554511.3754 %319.230071.6894 %
Target2673.998065.6716 %5000055000000.10972.4338 %4.107766.5071 %
Difference+5+124.6776+2.3839 %+3050000+11002476980+190.4448+8.9416%+315.1223+5.1822 %

Known prime factors (1 factor, 90.0 bits, 0.00121096% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
743212912383475954880335318538621992890.000583310421245919811931
3 × 13 × 160709 × 553897 × 23997473
2023-03-095538972399747351,636,3310.57900.7721

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2002-01-22ANONYMOUSv4_computers40000520000--0.0211.908%
2012-07-03NesowaEPC9000016650006--0.0563.015%
2019-06-22NumberwangManual testing175000332500012--0.1103.910%
2023-03-09DRobinsonPE5500X31000001100797698022890.0005228.215.916%


Trial Factoring results:
57585960616263646566676869707172
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1998-08-16ANONYMOUSv4_computers212620.041
1999-03-01ANONYMOUSv4_computers212630.132
2013-10-24NesowaManual testing2632640.264
2013-11-25David CampeauManual testing2642650.503
2015-06-21VictordeHollanderManual testing2652661.005
2016-05-20america64Manual testing2662672.011
2016-05-28america64Manual testing2672684.022
2016-06-12ramgeisManual testing26827156.31
2021-09-28SRBaseManual testing27127264.35


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)
1999-06-26estrandv4_computers0196434407AD08B71.621
2002-02-17ANONYMOUSv4_computers0196434407AD08B71.621


PRP results:
dateuseridcompidcofactorsres64
2023-03-15Funky Waddlemain
1238347595488033531853862199
5519609CBF02E0DA


CERT results:
dateuseridcompid
2023-03-15ec14


P-1 factor-bounds graph:
B1 = 3100000, B2 = 11007976980 (P-1 stage 2)
B1 = 3100000 (P-1 stage 1)
B1 = 175000, B2 = 3325000 (P-1 stage 2)
B1 = 90000, B2 = 1665000 (P-1 stage 2)
B1 = 175000 (P-1 stage 1)
B1 = 90000 (P-1 stage 1)
B1 = 40000, B2 = 520000 (P-1 stage 2)
B1 = 40000 (P-1 stage 1)
103
104
105
106
107
103
104
105
106
107
108
109
1010
1011
TF factor-bounds graph:
272
271
268
267
266
265
264
263
262
this exponent TF target: 67
TF double-checked to: 67
ECM T-Level=1.15 ~= -13-bit
250
260
270
280
290
2100
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Last modified: 2024-03-13T02:15:48+00:00