is 2 37174069 - 1
has 11190510 decimal digits
takes 48.017 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L33ED1559646EC342double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual27112.860563.3803 %400000120000001.93294.6265 %14.793465.0745 %
Target27112.860563.3803 %260000400000004.54214.0369 %17.402664.8586 %
Difference---+140000-28000000-2.6092+0.5896%-2.6092+0.2159 %

Known prime factors (1 factor, 85.4 bits, 0.00022970% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
37174069507026488130043834175982092685.390681962590818406016
27 × 72 × 71 × 569 × 877 × 3068911
2016-01-188773068911289,9890.31470.5849

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2007-01-16ANONYMOUSv4_computers645000645000--1.2082.180%
2016-01-18HBendtzHAL9007400000120000001222685.3901.9704.627%


Trial Factoring results:
575859606162636465666768697071
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2006-04-14Team Prime Ribv4_computers212670.402
2012-04-03Serge BatalovManual testing2672680.804
2012-11-01Carsten KossendeyManual testing2682691.608
2014-10-20VictordeHollanderManual testing2692703.216
2014-11-21NickOfTimeManual testing2702716.433


ECM factoring results:
No ECM results for M37174069


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2007-06-15ANONYMOUSv4_computers33ED1559646EC34248.02


PRP results:
No PRP results for M37174069


CERT results:
No CERT results for M37174069


P-1 factor-bounds graph:
B1 = 400000, B2 = 12000000 (P-1 stage 2)
B1 = 645000 (P-1 stage 1)
B1 = 400000 (P-1 stage 1)
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108
TF factor-bounds graph:
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267
this exponent TF target: 71
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00