is 2 48000467 - 1
has 14449581 decimal digits
takes 83.334 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LEF64D8E5C0F872BCdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual27339.850564.3836 %1600000400000009.29445.7264 %49.145066.4231 %
Target27219.923463.8889 %340000550000008.35274.1652 %28.276165.3930 %
Difference+1+19.9271+0.4947 %+1260000-15000000+0.9418+1.5612%+20.8689+1.0301 %

Known prime factors:
No known factors for M48000467

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2010-09-01ANONYMOUS750000750000--1.8882.147%
2018-11-11mikrS0661600000400000006--9.2946.247%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2003-06-09Thomas Mullenv4_computers212590.001
2003-10-08Thomas Mullenv4_computers212600.002
2016-02-23Mark RoseManual testing2602640.077
2008-04-24S00030v4_computers2642692.413
2012-02-20Kyle AskineManual testing2692702.491
2012-02-26GregManual testing27027214.95
2017-12-13Sid & AndyManual testing27227319.93


ECM factoring results:
No ECM results for M48000467


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2012-04-30johnniekJohn_Core-i7EF64D8E5C0F872BC83.33
2016-04-06Sebastian HornbostelManual testingEF64D8E5C0F872BC84.48


PRP results:
No PRP results for M48000467


CERT results:
No CERT results for M48000467


P-1 factor-bounds graph:
B1 = 1600000, B2 = 40000000 (P-1 stage 2)
B1 = 1600000 (P-1 stage 1)
B1 = 750000 (P-1 stage 1)
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107
108
TF factor-bounds graph:
273
272
270
269
264
260
259
this exponent TF target: 72
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00