is 2 85580993 - 1
has 25762446 decimal digits
takes 275.642 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
1 primality tests remaining
ResidueStatus
L-LC089E2960B9694__
needs double-check
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual276178.824764.4737 %4030006174525017.49044.1960 %196.315165.9644 %
Target27589.411364.0000 %5500009500000026.60103.9474 %116.012365.4211 %
Difference+1+89.4134+0.4737 %-147000-33254750-9.1106+0.2486%+80.3027+0.5433 %

Known prime factors:
No known factors for M85580993

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2018-05-08YxinityManual testing780000780000--4.0971.693%
2023-03-09Mark Roseworktop40300061745250--19.674.622%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2019-04-28ATHManual testing21264
2010-11-27Architects Cubedm1_802642650.044
2013-03-04wangyun183Manual testing2652660.087
2013-06-17Lukin DmitryManual testing2662670.175
2013-08-16RobishManual testing2672680.349
2013-08-18RobishManual testing2682690.699
2013-10-21electron1897Manual testing2692701.397
2014-03-18ANONYMOUS2702712.794
2017-02-27Judge HaleManual testing27127316.77
2017-04-17ANONYMOUSManual testing27327422.35
2017-09-18Brian BeuningManual testing27427544.71
2017-09-24TheJudgerManual testing27527689.41


ECM factoring results:
No ECM results for M85580993


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2019-08-03patgieC089E2960B9694__275.6


PRP results:
No PRP results for M85580993


CERT results:
No CERT results for M85580993


P-1 factor-bounds graph:
B1 = 403000, B2 = 61745250 (P-1 stage 2)
B1 = 780000 (P-1 stage 1)
B1 = 403000 (P-1 stage 1)
104
105
106
104
105
106
107
108
TF factor-bounds graph:
276
275
274
273
271
270
269
268
267
266
265
264
this exponent TF target: 75
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00