is 2 65065883 - 1
has 19586783 decimal digits
takes 157.830 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27458.799964.8649%580000102950003.90173.7517%62.701666.1830%1.3182%
PrimeNet2703.672462.8571%280000130000003.42245.2997%7.094864.8256%1.9685%
GPU7227458.799964.8649%450000140000004.17943.8623%62.979266.2219%1.3570%
Difference---+130000-3705000-0.2777-0.1106%-0.2777-0.0389%-0.0389%

Known prime factors (1 factor, 81.2 bits, 0.00012477% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
6506588327467728916366857010069272581.18421107627876476261
37 × 3079 × 224467 × 825421
2013-09-3022446782542114,3710.90471.6068

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2013-09-30T07:12:00Jwb52zClay580000102950002581.1843.902315.77.8033.752%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2003-10-31T00:00:00ANONYMOUSv4_computers21259--0.001--
2004-02-23T00:00:001997rj7v4_computers21260--0.002--
2022-03-30T15:46:14LordJuliusManual testing260264--0.052--
2009-03-19T02:05:00arnaudSRV-410264265--0.057--
2009-06-12T11:17:00Mihai22265266--0.115--
2010-02-24T09:25:00ANONYMOUS_266267--0.230--
2010-02-27T18:18:00sunithayaboxx267268--0.459--
2010-03-02T19:06:00sunithayaboxx268269--0.919--
2012-03-27T20:20:00vats09Semp_7_64269270--1.838--
2013-03-31T13:13:00SMoffatManual testing270271--3.675--
2013-09-20T07:45:00Kyle AskineManual testing271272--7.350--
2013-09-20T07:45:00Kyle AskineManual testing272273--14.70--
2013-09-25T13:15:00SWL551Manual testing273274--29.40--


ECM factoring results:
No ECM results for M65065883


Lucas-Lehmer results:
No L-L results for M65065883


PRP results:
No PRP results for M65065883


P-1 factor-bounds graph:
B1 = 580000, B2 = 10295000 (P-1 stage 2)
B1 = 580000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-03-30T15:46:14+00:00