is 2 52170103 - 1
has 15704766 decimal digits
takes 99.944 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
Actual2692.288462.3188 %----2.288462.3188 %
Target27336.665564.3836 %340000550000009.21693.8068 %45.882465.7394 %
Difference-4-34.3771-2.0647 %-340000-55000000-9.2169-3.8068 %-43.5940-3.4206 %

Known prime factors (1 factor, 69.1 bits, 0.00013236% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
521701036111363804585692407272169.0505857151369421
3 × 11 × 21013 × 8446649
2012-02-262101384466493.87631.33352.3876

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2012-02-26Jerry HallettManual testing2169.0502.4590.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-01ANONYMOUSv4_computers212532.30000e-5
2000-02-23ANONYMOUSv4_computers212544.60000e-5
2000-05-05ANONYMOUSv4_computers212560.000
2001-06-09ANONYMOUSv4_computers212570.000
2002-04-14ANONYMOUSv4_computers212580.001
2003-11-161997rj7v4_computers212590.001
2004-02-071997rj7v4_computers212600.001
2007-01-01ANONYMOUSv4_computers212630.019
2008-10-31DerekManual testing212640.036
2009-02-04Net_ForceKathy_PC2642650.072
2009-06-30Angelo Papacasa2652660.143
2009-07-04lindedkltvh0m-SH1352662670.286
2009-07-13lindedkltvh0m-SH1352672680.573
2010-03-28cnaTb_xo4y64-222682691.146


ECM factoring results:
No ECM results for M52170103


Lucas-Lehmer results:
No L-L results for M52170103


PRP results:
No PRP results for M52170103


CERT results:
No CERT results for M52170103


P-1 factor-bounds graph:
103
104
105
103
104
105
106
107
TF factor-bounds graph:
269
268
267
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
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Last modified: 2024-03-13T02:15:48+00:00