is 2 77193869 - 1
has 23237671 decimal digits
takes 217.644 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
Actual27449.561863.5135 %7100007100002.90261.7956 %52.464464.1686 %
Target27449.561863.5135 %5000009000000021.97904.1978 %71.540865.0451 %
Difference---+210000-89290000-19.0764-2.4023 %-19.0764-0.8765 %

Known prime factors (1 factor, 77.7 bits, 0.00010065% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
771938692452320297026212690910412477.6981588416495244080
24 × 3 × 5 × 67 × 181 × 197 × 1559 × 1777
2015-06-1015591777664.290.00640.0130

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2015-06-10wombatman71000071000012477.6982.9031.796%


Trial Factoring results:
575859606162636465666768697071727374
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2000-08-17ANONYMOUSv4_computers212531.55000e-5
2003-12-02ANONYMOUSv4_computers212610.002
2008-09-15JohnHa0Manual testing212650.048
2011-01-18arnaudSRV-3302652660.097
2011-01-24arnaudSRV-3302662670.194
2011-02-19Eugene Sitnikovexses152672680.387
2011-02-21eon_blue_apocalypse6pack-22682690.774
2011-02-24eon_blue_apocalypse6pack-22692701.549
2013-01-06SWL551Manual testing27027321.68
2015-06-03NickOfTimeManual testing27327424.78


ECM factoring results:
No ECM results for M77193869


Lucas-Lehmer results:
No L-L results for M77193869


PRP results:
No PRP results for M77193869


CERT results:
No CERT results for M77193869


P-1 factor-bounds graph:
B1 = 710000 (P-1 stage 1)
102
103
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105
106
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104
105
106
TF factor-bounds graph:
274
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270
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268
267
266
265
261
253
this exponent TF target: 74
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00