is 2 98533763 - 1
has 29661619 decimal digits
takes 375.797 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
Actual278621.274465.3846 %720000129600007.66962.8709 %628.944066.3784 %
Target276155.317364.4737 %65000011000000036.54143.8335 %191.858765.8356 %
Difference+2+465.9572+0.9109 %+70000-97040000-28.8719-0.9626 %+437.0853+0.5428 %

Known prime factors (1 factor, 79.7 bits, 0.00008091% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
985337639998237912927609077448392479.7265073508617004513
7 × 19 × 787 × 24809 × 1953767
2020-05-202480919537671,242.60.71841.0995

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2020-05-20MarkSlaptop6472000012960000622479.7267.6703.497%


Trial Factoring results:
57585960616263646566676869707172737475767778
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2011-01-21Architects Cubeda3_bu22642650.038
2013-10-09Lukin DmitryManual testing2652660.076
2013-10-10Ryan PropperManual testing2662670.152
2013-10-15Ryan PropperManual testing2672680.303
2013-10-15Ryan PropperManual testing2682690.607
2013-10-15Ryan PropperManual testing2692701.213
2013-10-15Ryan PropperManual testing2702712.427
2013-10-15Ryan PropperManual testing2712724.854
2019-04-11Niels_Mache_NextcloudManual testing2722739.71
2019-11-19bayanneManual testing27327419.41
2019-12-04Architects CubedManual testing273274
2020-02-09TheJudgerManual testing27427538.83
2020-02-09TheJudgerManual testing27527677.66
2020-02-09TheJudgerManual testing276277155.3
2020-04-11SRBaseManual testing277278310.6


ECM factoring results:
No ECM results for M98533763


Lucas-Lehmer results:
No L-L results for M98533763


PRP results:
No PRP results for M98533763


CERT results:
No CERT results for M98533763


P-1 factor-bounds graph:
B1 = 720000, B2 = 12960000 (P-1 stage 2)
B1 = 720000 (P-1 stage 1)
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105
106
103
104
105
106
107
108
TF factor-bounds graph:
278
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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JSON version of this page
Last modified: 2024-02-09T03:30:02+00:00