is 2 89076739 - 1
has 26814771 decimal digits
takes 300.304 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
Actual276171.806964.4737 %7150007150003.49521.4622 %175.302064.9932 %
Target27585.902464.0000 %60000010000000029.40654.0520 %115.308965.4587 %
Difference+1+85.9044+0.4737 %+115000-99285000-25.9113-2.5898 %+59.9931-0.4656 %

Known prime factors (1 factor, 104.2 bits, 0.00011695% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
890767392297244125276688835926253923507132104.180128947475573656150340565
38 × 5 × 17 × 311 × 56359 × 91621 × 143981
2018-10-16916211439811.504e+90.46180.9115

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2018-10-16arnaudsnd-15-153715000715000132104.1803.4951.641%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-11-03Architects Cubedm1_042642650.042
2013-03-16SMoffatManual testing2652670.252
2013-03-17GrunwalderGIMPcompute-0-32672680.336
2013-03-23mm1306192682690.671
2013-03-31mm1306192692701.342
2013-07-23EratosthenesManual testing2702712.685
2017-06-17monstManual testing2712725.369
2017-08-18ANONYMOUSManual testing27227432.21
2018-09-14cuBerBruceManual testing274276128.9


ECM factoring results:
No ECM results for M89076739


Lucas-Lehmer results:
No L-L results for M89076739


PRP results:
No PRP results for M89076739


CERT results:
No CERT results for M89076739


P-1 factor-bounds graph:
B1 = 715000 (P-1 stage 1)
103
104
105
106
103
104
105
106
TF factor-bounds graph:
276
274
272
271
270
269
268
267
265
this exponent TF target: 75
TF double-checked to: 67
250
260
270
280
290
2100
2110
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Last modified: 2024-03-13T02:15:48+00:00