is 2 88801717 - 1
has 26731981 decimal digits
takes 299.377 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
Actual276172.338964.4737%7150007150003.49521.4615%175.834164.9929%0.5192%
PrimeNet2715.383761.9718%360000170000006.19165.4096%11.575264.0290%2.0572%
GPU7227586.168564.0000%600000200000008.09994.0505%94.268465.4582%1.4582%
Difference+1+86.1705+0.4737%+115000-19285000-4.6047-2.5890%+81.5658-0.4653%-0.4653%

Known prime factors (1 factor, 89.5 bits, 0.00010076% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
888017178632257129768788870757837132789.4804860411161739580368
24 × 32 × 23 × 73 × 7681 × 42337 × 61819
2018-09-2742337618191,646,5090.21210.4212

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2018-09-28T00:53:47Jwb52zClay7150007150002789.4803.495598.86.9901.462%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-11-15T16:50:00Architects Cubedm1_74264265--0.042--
2011-03-24T23:54:00wavelet3000Manual testing265266--0.084--
2011-03-31T11:32:00wavelet3000Manual testing266267--0.168--
2011-05-19T02:54:00wavelet3000Manual testing267268--0.337--
2011-05-19T02:54:00wavelet3000Manual testing268269--0.673--
2011-05-19T02:54:00wavelet3000Manual testing269270--1.346--
2013-11-25T02:58:00SMoffatManual testing270271--2.693--
2014-01-26T11:37:00Juergen KampmeierManual testing271272--5.386--
2017-08-12T10:58:22ANONYMOUSManual testing272273--10.77--
2017-08-12T10:58:22ANONYMOUSManual testing273274--21.54--
2018-09-01T16:00:07Strolling JellyfishManual testing274275--43.09--
2018-09-01T16:00:07Strolling JellyfishManual testing275276--86.17--


ECM factoring results:
No ECM results for M88801717


Lucas-Lehmer results:
No L-L results for M88801717


PRP results:
No PRP results for M88801717


P-1 factor-bounds graph:
B1 = 715000 (P-1 stage 1)
103
104
105
106
103
104
105
106
TF factor-bounds graph:
276
275
274
273
272
271
270
269
268
267
266
265
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260
270
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2100
Last modified: 2018-09-28T00:53:47+00:00