is 2 131602439 - 1
has 39616282 decimal digits
takes 698.224 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
Actual27314.535063.0137 %1335000133500010.27022.7544 %24.805364.0325 %
Target277232.580564.9351 %80000015000000068.69003.9306 %301.270566.3133 %
Difference-4-218.0455-1.9214 %+535000-148665000-58.4197-1.1762 %-276.4652-2.2809 %

Known prime factors (1 factor, 81.6 bits, 0.00006201% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
13160243936861701329605527969712712581.60814004946112588965
5 × 47 × 593 × 953 × 1583 × 66617
2021-04-081583666173,721.30.03940.0522

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-04-08yphysicsManual testing1335000133500012581.60810.271.799%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-06-06Richard2632640.015
2010-11-15Architects Cubedi4l_12642650.028
2012-09-30VictordeHollanderManual testing2652680.397
2012-09-30VictordeHollanderManual testing2682690.454
2013-01-19VictordeHollanderManual testing2692700.909
2015-12-17SummyManual testing2702711.817
2015-12-20ANONYMOUSManual testing2712723.634
2015-12-20ANONYMOUSManual testing2722737.268


ECM factoring results:
No ECM results for M131602439


Lucas-Lehmer results:
No L-L results for M131602439


PRP results:
No PRP results for M131602439


CERT results:
No CERT results for M131602439


P-1 factor-bounds graph:
B1 = 1335000 (P-1 stage 1)
102
103
104
105
106
107
102
103
104
105
106
107
TF factor-bounds graph:
273
272
271
270
269
268
265
264
this exponent TF target: 77
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00