is 2 30472231 - 1
has 9173056 decimal digits
takes 31.742 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-LCE1ECC433180D79Ddouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2670.975162.6866 %31500024412500.65084.6940 %1.625964.4380 %
Target27115.689064.7887 %200000300000002.75443.5674 %18.443466.0448 %
Difference-4-14.7139-2.1022 %+115000-27558750-2.1036+1.1266%-16.8175-1.6068 %

Known prime factors (1 factor, 67.8 bits, 0.00022246% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
304722312547972221080165981692167.7884180810097364
22 × 3 × 348400841447
2011-05-1743484008414471.477028,67053,548

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2006-11-09bamv4_computers3150002441250--0.6513.097%
2011-05-17UngelovendeManual testing2167.7881.3730.000%


Trial Factoring results:
575859606162636465666768697071
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2001-09-16Net_Forcev4_computers212560.000
2003-07-06AxelFoxv4_computers212600.003
2005-01-20markrv4_computers212620.010
2005-09-22Team Prime Ribv4_computers212670.490


ECM factoring results:
No ECM results for M30472231


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2007-07-24bamv4_computersCE1ECC433180D79D31.74


PRP results:
No PRP results for M30472231


CERT results:
No CERT results for M30472231


P-1 factor-bounds graph:
B1 = 315000, B2 = 2441250 (P-1 stage 2)
B1 = 315000 (P-1 stage 1)
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TF factor-bounds graph:
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this exponent TF target: 71
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00