is 2 50360983 - 1
has 15160167 decimal digits
takes 92.259 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L9A354EB58664801Adouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual27337.982764.3836 %1000000200000005.40614.8477 %43.388766.1101 %
Target27337.982764.3836 %340000550000008.81373.7896 %46.796465.7333 %
Difference---+660000-35000000-3.4077+1.0581%-3.4077+0.3769 %

Known prime factors (1 factor, 88.0 bits, 0.00017472% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
503609833074333654226954929021071692787.9903052297106896180848
24 × 3 × 113 × 6469 × 19087 × 4557559
2018-03-021908745575591,121,8750.70751.2319

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2010-09-28Gavin Brockworkpc815000815000--2.5052.000%
2018-03-02Sid & AndyEmperor_Zurg1000000200000001222787.9905.4064.848%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-10-07ANONYMOUSv4_computers212532.38000e-5
2000-02-09ANONYMOUSv4_computers212544.77000e-5
2000-04-05ANONYMOUSv4_computers212560.000
2001-04-15ANONYMOUSv4_computers212570.000
2001-12-22ANONYMOUSv4_computers212580.001
2003-08-25ANONYMOUSv4_computers212590.001
2003-11-08ANONYMOUSv4_computers212600.002
2008-10-14kutensv4_computers212691.187
2015-01-20monstManual testing2692702.374
2015-07-20Mark RoseManual testing2702714.748
2015-12-05ANONYMOUSManual testing2712729.497
2015-12-26AirSquirrelsManual testing27227318.99


ECM factoring results:
No ECM results for M50360983


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2010-12-02Gavin Brockworkpc9A354EB58664801A106.7


PRP results:
No PRP results for M50360983


CERT results:
No CERT results for M50360983


P-1 factor-bounds graph:
B1 = 1000000, B2 = 20000000 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 815000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
TF factor-bounds graph:
273
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271
270
269
260
259
258
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253
this exponent TF target: 73
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00