is 2 58348819 - 1
has 17564745 decimal digits
takes 123.667 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LD309A297B55B74E4double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual27465.568964.8649 %53500098975003.21183.6346 %68.780666.1419 %
Target27332.782964.3836 %4000006500000012.04574.0804 %44.828665.8369 %
Difference+1+32.7859+0.4813 %+135000-55102500-8.8339-0.4458 %+23.9521+0.3050 %

Known prime factors:
No known factors for M58348819

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2012-10-24tschp84005350009897500--3.2124.011%


Trial Factoring results:
575859606162636465666768697071727374
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-23ANONYMOUSv4_computers212532.06000e-5
2000-02-09ANONYMOUSv4_computers212544.11000e-5
2000-06-28ANONYMOUSv4_computers212560.000
2000-06-29ANONYMOUSv4_computers212560.000
2001-07-17ANONYMOUSv4_computers212570.000
2002-09-22ANONYMOUSv4_computers212580.001
2003-07-30ANONYMOUSv4_computers212590.001
2003-12-02ANONYMOUSv4_computers212610.003
2003-12-13ANONYMOUSv4_computers212610.003
2016-02-23Mark RoseManual testing2612630.025
2008-10-29KYOJI_KAMEIwlaptop2632640.032
2008-10-29KYOJI_KAMEIwlaptop2642650.064
2008-10-29KYOJI_KAMEIwlaptop2652660.128
2008-10-29KYOJI_KAMEIwlaptop2662670.256
2009-06-02lindedG88143RBXYL-TNE2672680.512
2011-07-02TheJudgerManual testing2682691.025
2011-07-02TheJudgerManual testing2692702.049
2011-10-20rlakeManual testing2702714.098
2012-07-21bcp19Manual testing2712728.196
2012-09-21Tom DuellManual testing27227316.39
2019-02-03TheJudgerManual testing27327432.79


ECM factoring results:
No ECM results for M58348819


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2013-01-25psy_infD309A297B55B74E4123.7
2021-07-01AuspiciousLLamaxaltsdc0b026D309A297B55B74E4123.7


PRP results:
No PRP results for M58348819


CERT results:
No CERT results for M58348819


P-1 factor-bounds graph:
B1 = 535000, B2 = 9897500 (P-1 stage 2)
B1 = 535000 (P-1 stage 1)
104
105
106
104
105
106
107
TF factor-bounds graph:
274
273
272
271
270
269
268
267
266
265
264
263
261
259
258
257
256
254
253
this exponent TF target: 73
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00