is 2 160313539 - 1
has 48259184 decimal digits
takes 1,052.058 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
Actual279763.710964.5570 %5000000500000047.57812.4477 %811.289065.4245 %
Target278381.854964.1026 %1000000180000000102.31593.8993 %484.170865.5023 %
Difference+1+381.8560+0.4544 %+4000000-175000000-54.7378-1.4516 %+327.1182-0.0778 %

Known prime factors (1 factor, 85.2 bits, 0.00005317% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
160313539454853433096899407906699272685.234141863699078123217
3 × 13 × 919 × 861121 × 4596497
2020-12-29861121459649748,87810.13116.676

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2020-12-29Roland ClarksonManual testing5000000500000012685.23449.342.696%


Trial Factoring results:
5758596061626364656667686970717273747576777879
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-06-29Torchwood InstituteRuth-Lappy2632640.012
2011-02-02runeskts012642650.023
2013-02-22sasaki3home2652660.047
2015-05-02rubikvn2100r_com2662670.093
2016-03-02XZTManual testing2672680.186
2017-03-29La GüiraManual testing2682690.373
2017-03-29La GüiraManual testing2692700.746
2017-11-19Earle LoweManual testing2702711.492
2017-11-19Earle LoweManual testing2712722.983
2017-11-28NoWhereManCyberPowerPC2722735.967
2020-12-26Roland ClarksonManual testing27327411.93
2020-12-26Roland ClarksonManual testing27427523.87
2020-12-26Roland ClarksonManual testing27527647.73
2020-12-26Roland ClarksonManual testing27627795.46
2020-12-26Roland ClarksonManual testing277278190.9
2020-12-26Roland ClarksonManual testing278279381.9


ECM factoring results:
No ECM results for M160313539


Lucas-Lehmer results:
No L-L results for M160313539


PRP results:
No PRP results for M160313539


CERT results:
No CERT results for M160313539


P-1 factor-bounds graph:
B1 = 5000000 (P-1 stage 1)
104
105
106
107
104
105
106
107
TF factor-bounds graph:
279
278
277
276
275
274
273
272
271
270
269
268
267
266
265
264
this exponent TF target: 78
TF double-checked to: 67
250
260
270
280
290
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Last modified: 2024-03-13T02:15:48+00:00