is 2 76259567 - 1
has 22956418 decimal digits
takes 212.229 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
Actual27325.083363.0137 %760000171000006.65934.8000 %31.742664.7890 %
Target27450.169063.5135 %5000009000000021.69484.1915 %71.863865.0429 %
Difference-1-25.0857-0.4998 %+260000-72900000-15.0355+0.6084%-40.1211-0.2538 %

Known prime factors (1 factor, 93.1 bits, 0.00012204% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
76259567103714209976411374678148865832993.06768000786036728594773
3 × 43 × 461 × 3119 × 123049 × 2979407
2015-07-19123049297940746,647,2861.12451.2234

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2015-07-19TheJudgerManual testing760000171000001222993.0676.7474.370%


Trial Factoring results:
575859606162636465666768697071727374
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-10-15ANONYMOUSv4_computers212502.00000e-6
2000-08-10ANONYMOUSv4_computers212531.57000e-5
2003-10-31markrv4_computers212620.004
2008-04-241997rj7v4_computers212640.026
2010-10-23Gnorfe_v2152642650.049
2010-10-24Alex DiamantopuloOlimp_prime2652660.098
2011-05-26Bobbi and the Straysnycdo-rtjia12662670.196
2011-06-13DRHManual testing26727324.69


ECM factoring results:
No ECM results for M76259567


Lucas-Lehmer results:
No L-L results for M76259567


PRP results:
No PRP results for M76259567


CERT results:
No CERT results for M76259567


P-1 factor-bounds graph:
B1 = 760000, B2 = 17100000 (P-1 stage 2)
B1 = 760000 (P-1 stage 1)
104
105
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104
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108
TF factor-bounds graph:
273
267
266
265
264
262
253
250
this exponent TF target: 74
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00