is 2 71117707 - 1
has 21408564 decimal digits
takes 190.141 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
Actual27453.796263.5135 %6500006500002.51991.7088 %56.316164.1370 %
Target27453.796263.5135 %5000008000000018.73004.0642 %72.526264.9964 %
Difference---+150000-79350000-16.2101-2.3554 %-16.2101-0.8594 %

Known prime factors (1 factor, 76.6 bits, 0.00010774% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
711177071163478345873117963530412476.623817994839086360
23 × 32 × 5 × 133 × 10529 × 98227
2014-06-271052998227301.830.05930.0831

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2014-06-27C.D.B.E8400_3600MHz65000065000012476.6232.5201.709%


Trial Factoring results:
575859606162636465666768697071727374
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2008-10-21Wojciech FlorekManual testing212640.026
2010-03-09RonnyKarlQuad12642650.053
2010-03-11Sturle Sundegoldiek.ifi2652660.105
2010-03-13Sturle Sundegibys.ifi2662670.210
2010-03-24ANONYMOOSv4_computers212702.942
2010-07-20ANONYMOOSv4_computers212701.681
2012-11-14Clown_RoyalManual testing2702713.362
2014-06-22AxelssonManual testing27127320.17
2014-06-25NickOfTimeManual testing27327426.90


ECM factoring results:
No ECM results for M71117707


Lucas-Lehmer results:
No L-L results for M71117707


PRP results:
No PRP results for M71117707


CERT results:
No CERT results for M71117707


P-1 factor-bounds graph:
B1 = 650000 (P-1 stage 1)
103
104
105
106
103
104
105
106
TF factor-bounds graph:
274
273
271
270
267
266
265
264
this exponent TF target: 74
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00