is 2 77284997 - 1
has 23265103 decimal digits
takes 217.901 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27599.009064.0000%670000127300005.42533.6948%104.434365.3301%1.3301%
PrimeNet2703.091861.4286%340000160000004.87805.7523%7.969863.6473%2.2187%
GPU7227449.503363.5135%500000180000005.94204.1984%55.445365.0454%1.5319%
Difference+1+49.5056+0.4865%+170000-5270000-0.5167-0.5037%+48.9889+0.2847%+0.2847%

Known prime factors (1 factor, 78.0 bits, 0.00010096% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
772849973075504888046193971982172478.0251989716638046964
22 × 3 × 1489 × 19211 × 5796493
2015-08-241921157964931,475.11.36532.4114

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2015-08-24T01:13:00Jwb52zClay670000127300002478.0255.425435.810.853.695%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-08-17T00:00:00ANONYMOUSv4_computers21253--1.55260e-5--
2003-12-02T00:00:00ANONYMOUSv4_computers21261--0.004--
Missing TF 61 - 62
Missing TF 62 - 63
Missing TF 63 - 64
2010-09-29T20:58:00kevindorekens264265--0.048--
2010-09-30T10:47:00GrunwalderGIMPLyc-i7265266--0.097--
2010-09-30T21:17:00Gnorfe_k_kontor266267--0.193--
2010-10-01T08:52:00ANONYMOUS267268--0.387--
2010-12-17T08:25:00ANONYMOUS268269--0.774--
2011-01-22T23:00:00Sagredo269270--1.547--
2013-01-09T01:19:00guiyuanManual testing270271--3.094--
2015-06-07T20:45:00ChuckManual testing271272--6.188--
2015-08-21T09:00:00Tim SorberaManual testing272273--12.38--
2015-08-21T09:00:00Tim SorberaManual testing273274--24.75--
2015-08-21T09:00:00Tim SorberaManual testing274275--49.51--


ECM factoring results:
No ECM results for M77284997


Lucas-Lehmer results:
No L-L results for M77284997


PRP results:
No PRP results for M77284997


P-1 factor-bounds graph:
B1 = 670000, B2 = 12730000 (P-1 stage 2)
B1 = 670000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
TF factor-bounds graph:
275
274
273
272
271
270
269
268
267
266
265
261
253
250
260
270
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290
2100
Last modified: 2015-08-24T01:13:00+00:00