is 2 104722963 - 1
has 31524754 decimal digits
takes 416.965 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
Actual276146.137964.4737 %7700007700004.44551.5473 %150.583465.0234 %
Target276146.137964.4737 %65000012000000041.29373.9257 %187.431665.8684 %
Difference---+120000-119230000-36.8483-2.3785 %-36.8483-0.8450 %

Known prime factors (1 factor, 80.6 bits, 0.00007700% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
10472296318801045398835970323570172580.6378976562952499716
22 × 7 × 32401 × 78889 × 125423
2021-07-08788891254232,338.20.47010.9269

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-07-08MarkSdesktop-i777000077000012580.6374.4451.547%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-04-19sasaki3MATE_J22632640.019
2010-08-28Torchwood InstitutePH95002642650.036
2012-05-07sasaki3mate_ma12652660.071
2013-09-02RobishManual testing2662670.143
2013-09-02Risto A. PajuManual testing2672680.285
2013-09-02Risto A. PajuManual testing2682690.571
2013-09-02Risto A. PajuManual testing2692701.142
2014-05-16Andreas_TruetschManual testing2702712.283
2015-01-14SMoffatManual testing2712724.567
2020-02-25el groccoManual testing2722739.134
2020-04-01SRBaseManual testing27327418.27
2021-03-28TheJudgerManual testing27427536.53
2021-03-28TheJudgerManual testing27527673.07


ECM factoring results:
No ECM results for M104722963


Lucas-Lehmer results:
No L-L results for M104722963


PRP results:
No PRP results for M104722963


CERT results:
No CERT results for M104722963


P-1 factor-bounds graph:
B1 = 770000 (P-1 stage 1)
103
104
105
106
103
104
105
106
TF factor-bounds graph:
276
275
274
273
272
271
270
269
268
267
266
265
264
this exponent TF target: 76
TF double-checked to: 67
250
260
270
280
290
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Last modified: 2024-02-09T03:30:02+00:00