is 2 58910141 - 1
has 17733720 decimal digits
takes 130.871 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
Actual27332.470564.3836%555000112387503.66284.1387%36.133365.8576%
Target27332.470564.3836%40000011200000020.87444.1435%53.344965.8593%
Difference---+155000-100761250-17.2116-0.0049%-17.2116-0.0017%

Known prime factors (1 factor, 65.6 bits, 0.00011132% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
58910141550306654106415732732065.577467072939196
22 × 33 × 4324749437		2018-03-312743247494370.2237759.001,417.6

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-11-18TheJudgerManual testing55500011238750---3.663--4.139%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-23ANONYMOUSv4_computers21253--2.03687e-5--
2000-02-09ANONYMOUSv4_computers21254--4.07374e-5--
2000-06-23ANONYMOUSv4_computers21256--0.000--
2001-06-09ANONYMOUSv4_computers21257--0.000--
2002-11-02ANONYMOUSv4_computers21258--0.001--
2003-07-30ANONYMOUSv4_computers21259--0.001--
2004-01-181997rj7v4_computers21260--0.003--
2016-02-23Mark RoseManual testing260263--0.024--
2008-11-04KYOJI_KAMEIwlaptop263264--0.033--
2008-11-05KYOJI_KAMEIwlaptop264265--0.063--
2008-11-05KYOJI_KAMEIwlaptop265266--0.127--
2018-03-31TJAOIManual testing265266*65.577200.100297.60.227
2008-11-06KYOJI_KAMEIwlaptop266267--0.254--
2008-11-12KYOJI_KAMEIwlaptop267268--0.507--
2009-08-07Todd WalkeBigBlackIvy268269--1.015--
2011-05-24ASTERIASManual testing269270--2.030--
2012-03-01GregManual testing270271--4.059--
2012-07-02Tom DuellManual testing271272--8.118--
2012-10-11Craig MeyersManual testing272273--16.24--


ECM factoring results:
No ECM results for M58910141


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2013-01-08TemplarBloomfield584F28C4E2614F__130.9


PRP results:
No PRP results for M58910141


P-1 factor-bounds graph:
B1 = 555000, B2 = 11238750 (P-1 stage 2)
B1 = 555000 (P-1 stage 1)
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1010
TF factor-bounds graph:
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267
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this exponent TF target: 73
TF double-checked to: 67.8
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Last modified: 2023-06-05T21:50:05+00:00