is 2 97259489 - 1
has 29278024 decimal digits
takes 370.937 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
Actual277314.706264.9351 %750000148125008.38463.2722 %323.090866.0825 %
Target276157.352264.4737 %60000010000000033.26703.7180 %190.619265.7946 %
Difference+1+157.3540+0.4614 %+150000-85187500-24.8824-0.4458 %+132.4716+0.2879 %

Known prime factors (1 factor, 96.2 bits, 0.00009889% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
97259489894883847248396412399349120492996.176460049634462091617816
23 × 3 × 47 × 67 × 241 × 491 × 11321 × 4543991
2020-03-14113214543991164,997,6431.42832.5571

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2020-03-14MarkSdesktop-i775000014812500622996.1767.9633.607%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2011-01-20Architects Cubedm1_842642650.038
2013-07-24Le ComteManual testing2652660.077
2014-10-06workerthreadManual testing2662670.154
2014-10-23workerthreadManual testing2672680.307
2014-10-31workerthreadManual testing2682690.615
2014-11-13workerthreadManual testing2692701.229
2014-11-15shaugeManual testing2702712.459
2018-08-02Xie ShiquanManual testing2712724.917
2019-04-15Niels_Mache_NextcloudManual testing2722739.83
2019-12-29riccardo ubertiManual testing27327419.67
2020-12-22Johan ViljoenManual testing27327419.67
2020-01-19TheJudgerManual testing27427539.34
2020-01-19TheJudgerManual testing27527678.68
2020-02-02TheJudgerManual testing276277157.4


ECM factoring results:
No ECM results for M97259489


Lucas-Lehmer results:
No L-L results for M97259489


PRP results:
No PRP results for M97259489


CERT results:
No CERT results for M97259489


P-1 factor-bounds graph:
B1 = 750000, B2 = 14812500 (P-1 stage 2)
B1 = 750000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
TF factor-bounds graph:
277
276
275
274
273
272
271
270
269
268
267
266
265
this exponent TF target: 76
TF double-checked to: 67
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Last modified: 2024-02-09T03:30:02+00:00