is 2 91724929 - 1
has 27611955 decimal digits
takes 332.248 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
Actual277333.695264.9351 %705000135712507.38463.1641 %341.079766.0445 %
Target27583.422364.0000 %60000011000000034.45684.1396 %117.879165.4903 %
Difference+2+250.2728+0.9351 %+105000-96428750-27.0722-0.9756 %+223.2006+0.5543 %

Known prime factors (1 factor, 89.2 bits, 0.00009724% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
917249297079159249014126243476421132789.1943858906911235726464
27 × 59 × 1733 × 272179 × 1083301
2019-07-1427217910833011,628,3541.66172.9094

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2019-07-14TheJudgerManual testing705000135712501222789.1947.3853.846%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2011-01-01Architects Cubedm1_052642650.041
2013-06-20David CampeauManual testing2652660.081
2014-04-04Andreas_TruetschManual testing2662670.163
2014-06-08Alex HenrieManual testing2672680.326
2014-06-11Alex HenrieManual testing2682690.652
2014-06-15SMoffatManual testing2692701.304
2014-09-14Stuart Thompsonserver2702712.607
2018-03-10gcardonaManual testing2712725.214
2018-06-25Andrew LuebkeManual testing27227310.43
2018-07-19gcardonaManual testing27327420.86
2019-01-13TheJudgerManual testing274276125.1
2019-04-09Luigi MorelliManual testing276277166.8


ECM factoring results:
No ECM results for M91724929


Lucas-Lehmer results:
No L-L results for M91724929


PRP results:
No PRP results for M91724929


CERT results:
No CERT results for M91724929


P-1 factor-bounds graph:
B1 = 705000, B2 = 13571250 (P-1 stage 2)
B1 = 705000 (P-1 stage 1)
104
105
106
104
105
106
107
108
TF factor-bounds graph:
277
276
274
273
272
271
270
269
268
267
266
265
this exponent TF target: 75
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00