is 2 105233789 - 1
has 31678528 decimal digits
takes 418.999 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
Actual276145.428564.4737 %480000206860009.12693.6604 %154.555465.7741 %
Target276145.428564.4737 %65000012000000041.29373.9281 %186.722365.8692 %
Difference----170000-99314000-32.1668-0.2677 %-32.1668-0.0951 %

Known prime factors (1 factor, 92.8 bits, 0.00008817% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
10523378985541267362861221885367494412892.78940643441700489004480
26 × 5 × 43 × 9473 × 57947 × 5380883
2021-08-3157947538088313,079,2192.00893.1612

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-08-31Team_InspectorHorn4800002068600022892.7899.1273.660%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-04-25Richardsvn_022632640.019
2010-08-30sannerud.comJim20102642650.036
2012-06-19ConadComputerzotac.dual1602652660.071
2013-09-09willmoreManual testing2662670.142
2013-09-14RobishManual testing2672680.284
2013-09-16timc995dl580_g5b2682690.568
2014-06-15webbertManual testing2692701.136
2014-06-18ANONYMOUSelysie2702712.272
2015-01-09shaugeManual testing2712724.545
2020-03-26mnd9Manual testing2722739.089
2020-04-03SRBaseManual testing27327418.18
2021-03-28TheJudgerManual testing274276109.1


ECM factoring results:
No ECM results for M105233789


Lucas-Lehmer results:
No L-L results for M105233789


PRP results:
No PRP results for M105233789


CERT results:
No CERT results for M105233789


P-1 factor-bounds graph:
B1 = 480000, B2 = 20686000 (P-1 stage 2)
B1 = 480000 (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
260
270
280
290
2100
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Last modified: 2024-03-13T02:15:48+00:00