is 2 104784307 - 1
has 31543220 decimal digits
takes 417.209 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
Actual276146.052364.4737 %6500002400000011.09733.9260 %157.149765.8685 %
Target276146.052364.4737 %65000012000000041.29373.9260 %187.346165.8685 %
Difference-----96000000-30.1964--30.1964-

Known prime factors (1 factor, 93.7 bits, 0.00008938% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
104784307156002468422958475255982846812993.65674439805391354296620
22 × 32 × 5 × 71 × 10243 × 55219 × 10298137
2021-07-08552191029813737,789,9533.54076.0500

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-07-08KrieselManual testing6500002400000022993.65611.163.926%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-04-19lindedskynet-node0232632640.019
2010-08-29Torchwood InstituteGMS-E72002642650.036
2012-05-07sannerud.comJens20102652660.071
2013-09-09willmoreManual testing2662670.143
2014-05-10webbertManual testing2672680.285
2014-05-16webbertManual testing2682690.571
2015-03-01Andrew BManual testing2692701.141
2015-03-02Andrew BManual testing2702712.282
2018-01-10el groccoManual testing2712724.564
2020-02-21Will HockensmithManual testing2722739.128
2020-04-03SRBaseManual testing27327418.26
2021-03-28TheJudgerManual testing274276109.5


ECM factoring results:
No ECM results for M104784307


Lucas-Lehmer results:
No L-L results for M104784307


PRP results:
No PRP results for M104784307


CERT results:
No CERT results for M104784307


P-1 factor-bounds graph:
B1 = 650000, B2 = 24000000 (P-1 stage 2)
B1 = 650000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
TF factor-bounds graph:
276
274
273
272
271
270
269
268
267
266
265
264
this exponent TF target: 76
TF double-checked to: 67
250
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2100
JSON version of this page
Last modified: 2024-03-13T02:15:48+00:00