is 2 2030101 - 1
has 611122 decimal digits
takes 0.133 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26714.636768.6567 %500000150000000.12305.1323 %14.759770.2653 %
Target2620.302666.1290 %80006000000.00381.2747 %0.306566.5608 %
Difference+5+14.3340+2.5277 %+492000+14400000+0.1191+3.8576%+14.4532+3.7046 %

Known prime factors (2 factors, 127.1 bits, 0.00625860% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
20301015293691367611238.945130380
22 × 3 × 5 × 41 × 53
-41532.202e-83.971e-67.955e-6
20301013340983439336536379423910892788.11082286138456572761144
23 × 32 × 72 × 29 × 349 × 569 × 1187 × 3412021
2016-01-091187341202159,510,7320.01780.0331

1 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2016-01-09alpertronManual testing500000150000001222788.1100.1238.198%


Trial Factoring results:
5758596061626364656667
No TF results for M2030101


ECM factoring results:
Total ECM effort:44.560 GHz-days
Estimated T-Level:25.808
DigitsB1CompleteFacMiss
201100012.1110.001%
25500001.62019.791%
302500000.16285.078%
3510000000.01398.739%


ECM Summary

B1B2factorcurvesGHz-days
500005000000201.513
50000665000070.691
500006900000211.784
500007000000574.877
250000400000007835.70


Lucas-Lehmer results:
No L-L results for M2030101


PRP results:
dateuseridcompidcofactorsres64
2017-09-30alpertronManual testing
334098343933653637942391089
529369136761
F0EE7F75ADDE7218
2017-10-20Oliver KruseThreadripper-PC
529369136761
334098343933653637942391089
F0EE7F75ADDE7218


CERT results:
No CERT results for M2030101


P-1 factor-bounds graph:
B1 = 500000, B2 = 15000000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
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106
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102
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105
106
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108
TF factor-bounds graph:
this exponent TF target: 62
TF double-checked to: 67
ECM T-Level=25.81 ~= 69-bit
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Last modified: 2024-03-13T02:15:48+00:00