is 2 10297907 - 1
has 3099979 decimal digits
takes 3.364 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L064EA52E155B9475double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual27292.866866.6667 %800000025524610650662.288013.6969 %755.154871.2323 %
Target2685.788164.7059 %7000080000000.23782.6590 %6.025965.6443 %
Difference+4+87.0787+1.9608 %+7930000+25516610650+662.0502+11.0379%+749.1289+5.5879 %

Known prime factors:
No known factors for M10297907

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2003-10-23ANONYMOUSv4_computers5500055000--0.0260.748%
2011-08-24James HeinrichQ660012500025312506--0.1213.281%
2023-06-05mikrNitron800000025524610650--780.617.481%


Trial Factoring results:
57585960616263646566676869707172
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-08-22ANONYMOUSv4_computers212640.191
2013-09-20NesowaManual testing2642650.363
2015-04-28ThaManual testing2652660.726
2015-12-02VictordeHollanderManual testing2662671.451
2017-09-26ANONYMOUSManual testing2672682.903
2017-12-12ramgeisManual testing2682695.805
2020-08-03ViliamFManual testing26927011.61
2021-10-01mikrManual testing27027123.22
2022-09-30Architects CubedGPU72_TF27127246.44


ECM factoring results:
Total ECM effort:1.011 GHz-days
Estimated T-Level:0.385
DigitsB1CompleteFacMiss
20110000.07792.596%
25500000.00799.291%


ECM Summary

B1B2factorcurvesGHz-days
50000500000021.011


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2000-07-25ANONYMOUSv4_computers064EA52E155B94753.364
2003-12-13ANONYMOUSv4_computers064EA52E155B94753.364


PRP results:
No PRP results for M10297907


CERT results:
No CERT results for M10297907


P-1 factor-bounds graph:
B1 = 8000000, B2 = 25524610650 (P-1 stage 2)
B1 = 8000000 (P-1 stage 1)
B1 = 125000, B2 = 2531250 (P-1 stage 2)
B1 = 125000 (P-1 stage 1)
B1 = 55000 (P-1 stage 1)
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TF factor-bounds graph:
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this exponent TF target: 68
TF double-checked to: 67
ECM T-Level=0.38 ~= -15-bit
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Last modified: 2024-02-09T03:30:02+00:00