is 2 3024979 - 1
has 910610 decimal digits
takes 0.257 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L9918D417F01C31D2double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26819.704267.6471 %10000001199121000.92297.4621 %20.627270.0613 %
Target2641.176665.6250 %1300011000000.00891.4286 %1.185666.1161 %
Difference+4+18.5276+2.0221 %+987000+118812100+0.9140+6.0334%+19.4416+3.9452 %

Known prime factors (1 factor, 64.1 bits, 0.00212036% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
3024979203333898612530387932064.1403360914218124
22 × 1949 × 431107519
2009-04-0619494311075191.17662.89895.4139

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2003-12-23Team Prime Ribv4_computers1000010000--0.0010.314%
2004-02-07ANONYMOUSv4_computers2048204800--0.0020.570%
2020-10-17JossManual testing302497302497---2.480%
2020-10-18JossManual testing30249730249796---4.964%
2022-01-22JossManual testing1000000119912100--1.13910.415%


Trial Factoring results:
575859606162636465666768
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2001-04-01David Campeauv4_computers212600.025
2009-01-28Jayson Kingatlas2602610.051
2022-03-11LordJuliusManual testing261263
2022-03-11LordJuliusManual testing263264
2022-03-11LordJuliusManual testing265266
2022-03-11LordJuliusManual testing266267
2021-03-19JossManual testing267268


ECM factoring results:
Total ECM effort:0.430 GHz-days
Estimated T-Level:0.577
DigitsB1CompleteFacMiss
20110000.11589.102%
25500000.01198.938%


ECM Summary

B1B2factorcurvesGHz-days
10.081
50000500000030.349


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-05-30ANONYMOUSv4_computers9918D417F01C31D20.257


PRP results:
dateuseridcompidcofactorsres64
2017-10-27Oliver KruseGTX-0
20333389861253038793
7004089711503C46
2017-12-10kkmrkkblmbrbkc4.xlarge
20333389861253038793
7004089711503C46


CERT results:
No CERT results for M3024979


P-1 factor-bounds graph:
B1 = 1000000, B2 = 119912100 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 302497, B2 = 3024979 (P-1 stage 2)
B1 = 302497 (P-1 stage 1)
B1 = 2048, B2 = 204800 (P-1 stage 2)
B1 = 10000 (P-1 stage 1)
B1 = 2048 (P-1 stage 1)
102
103
104
105
106
102
103
104
105
106
107
108
109
TF factor-bounds graph:
268
267
266
264
263
261
260
this exponent TF target: 64
TF double-checked to: 67
ECM T-Level=0.58 ~= -15-bit
250
260
270
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Last modified: 2024-03-03T02:29:32+00:00