is 2 58619339 - 1
has 17646180 decimal digits
takes 130.224 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
Actual27332.631664.3836 %----32.631664.3836 %
Target27332.631664.3836 %4000007000000013.50334.1410 %46.135065.8584 %
Difference----400000-70000000-13.5033-4.1410 %-13.5033-1.4749 %

Known prime factors (1 factor, 89.6 bits, 0.00015292% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
586193399668727275559848957409737832789.6438247045634171897569
3 × 587 × 1663 × 2027 × 33769 × 41141
2012-08-1933769411413,892,7920.11010.2214

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2012-08-19TheJudgerManual testing2789.6432.9320.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-23ANONYMOUSv4_computers212532.05000e-5
2000-02-09ANONYMOUSv4_computers212544.09000e-5
2000-06-28ANONYMOUSv4_computers212560.000
2001-07-17ANONYMOUSv4_computers212570.000
2002-10-12ANONYMOUSv4_computers212580.001
2003-07-30ANONYMOUSv4_computers212590.001
2003-11-081997rj7v4_computers212600.001
2022-06-27LordJuliusManual testing260263
2008-10-31Sturle Sundeaalto.ifi2632640.032
2008-11-01Matthias WurtingerWUR_E66002642650.064
2008-11-01Stefan MuthCore_2_Quad2652660.127
2008-11-02Sturle Sundefigaro.ifi2662680.765
2009-06-07MelleeMellee2682691.020
2011-05-07tmorrowpaperclip2692702.040
2012-04-28XyzzyManual testing2702714.079
2012-05-31ChuckManual testing27127324.48


ECM factoring results:
No ECM results for M58619339


Lucas-Lehmer results:
No L-L results for M58619339


PRP results:
No PRP results for M58619339


CERT results:
No CERT results for M58619339


P-1 factor-bounds graph:
103
104
105
103
104
105
TF factor-bounds graph:
273
271
270
269
268
266
265
264
263
260
259
258
257
256
254
253
this exponent TF target: 73
TF double-checked to: 67
250
260
270
280
290
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Last modified: 2024-03-13T02:15:48+00:00