is 2 58200827 - 1
has 17520195 decimal digits
takes 123.353 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
Actual2718.214363.3803 %----8.214363.3803 %
Target27332.866364.3836 %4000006500000012.04574.0791 %44.911965.8364 %
Difference-2-24.6520-1.0033 %-400000-65000000-12.0457-4.0791 %-36.6976-2.4561 %

Known prime factors (1 factor, 71.6 bits, 0.00012304% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
5820082735990657449044659837272271.60830919369452469
30919369452469
2012-06-0513091936945246912.2505,177,0199,669,230

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2012-06-05Craig MeyersManual testing2271.6082.4590.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-23ANONYMOUSv4_computers212532.06000e-5
2000-02-09ANONYMOUSv4_computers212544.12000e-5
2000-06-28ANONYMOUSv4_computers212560.000
2001-07-17ANONYMOUSv4_computers212570.000
2002-07-14ANONYMOUSv4_computers212580.001
2003-07-30ANONYMOUSv4_computers212590.001
2003-11-28ANONYMOUSv4_computers212610.003
2022-06-27LordJuliusManual testing261263
2008-11-18ComputerraRUv4_computers2632640.034
2009-02-27arnaudSRV-1702642650.064
2009-02-28David Barleyken22652660.128
2009-03-02David Barleyken22662670.257
2009-06-01tmorrowteapot2672680.514
2011-05-05Brian Changrant2682691.027
2011-10-04jesterking2692702.054
2011-11-06symalladSchool_Laptop2702714.109


ECM factoring results:
No ECM results for M58200827


Lucas-Lehmer results:
No L-L results for M58200827


PRP results:
No PRP results for M58200827


CERT results:
No CERT results for M58200827


P-1 factor-bounds graph:
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TF factor-bounds graph:
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this exponent TF target: 73
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00