is 2 10024499 - 1
has 3017675 decimal digits
takes 2.924 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-LEAA3B7119D5243BFdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual274381.651667.5676%50000001500000005.45566.1667%387.107269.5676%
Target2685.945964.7059%65000120000000.30252.5688%6.248465.6125%
Difference+6+375.7056+2.8617%+4935000+138000000+5.1531+3.5978%+380.8588+3.9550%

Known prime factors (1 factor, 78.8 bits, 0.00078634% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
100244995361867953492072098691992478.82726743820082639901
19 × 59 × 23857109797181
2023-04-1359238571097971816,425.2549,7081,026,701

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2003-08-31ANONYMOUSv4_computers5000050000---0.021--0.274%
2011-05-03James Heinrichi7-9201100004400000---0.145--1.788%
2020-07-29ViliamFManual testing100000030000000---1.091--3.949%
2021-01-24ViliamFManual testing5000000150000000---5.456--6.167%


P+1 Factoring results:
dateuseridcompidb1b2startfactorSmoothdigitsbits*ghz-days
2023-04-13JacobZDesktop-Neon200000015000000027P+12478.8274.628


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-08-16ANONYMOUSv4_computers21264--0.355--
2011-04-23James HeinrichManual testing264265--0.373--
2015-04-19ThaManual testing265266--0.745--
2015-11-10VictordeHollanderManual testing266267--1.491--
2016-04-19mikrManual testing267268--2.982--
2017-09-22ramgeisManual testing268269--5.964--
2020-06-17ViliamFManual testing269270--11.93--
2021-01-08ViliamFManual testing270271--23.85--
2021-04-27-Anonymous-Manual testing271272--47.71--
2021-04-29-Anonymous-Manual testing272273--95.42--
2021-05-18-Anonymous-Manual testing273274--190.8--


ECM factoring results:
Total ECM effort:1.331 GHz-days
Estimated T-Level:0.577
DigitsB1CompleteFacMiss
20110000.11589.102%
25500000.01198.938%


ECM Summary

B1B2factorcurvesGHz-days
50000500000031.331


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2000-08-17Tim Towersv4_computersEAA3B7119D5243BF2.924
2003-12-02Matt Perryv4_computersEAA3B7119D5243BF2.924


PRP results:
dateuseridcompidcofactorsres64PRP
2023-04-15Naegi Makoto5950X
536186795349207209869199
5F8C6E0EB1131296no


P-1 factor-bounds graph:
B1 = 5000000, B2 = 150000000 (P-1 stage 2)
B1 = 2000000, B2 = 150000000 (P+1 stage 2)
B1 = 5000000 (P-1 stage 1)
B1 = 1000000, B2 = 30000000 (P-1 stage 2)
B1 = 2000000 (P+1 stage 1)
B1 = 1000000 (P-1 stage 1)
B1 = 110000, B2 = 4400000 (P-1 stage 2)
B1 = 110000 (P-1 stage 1)
B1 = 50000 (P-1 stage 1)
100
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103
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105
106
107
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
1013
1014
TF factor-bounds graph:
274
273
272
271
270
269
268
267
266
265
264
this exponent TF target: 68
TF double-checked to: 67.8
ECM T-Level=0.58 ~= -15-bit
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270
280
Last modified: 2023-06-05T21:50:05+00:00