is 2 978323 - 1
has 294505 decimal digits
takes 0.024 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
Actual26730.372370.1493%1000000300000000.09075.7719%30.463071.8722%1.7229%
PrimeNet2400.000050.0000%90004000000.001123.9946%0.001161.9973%11.9973%
GPU722440.000054.5455%160006500000.001818.4343%0.001862.9247%8.3792%
Difference+23+30.3723+15.6038%+984000+29350000+0.0889-12.6625%+30.4612+8.9475%+8.9475%

Known prime factors (1 factor, 61.5 bits, 0.00629069% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
97832333601901054186971191961.5431717321429333
89 × 127 × 151935011
2007-09-141271519350110.34340.29110.5436

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2002-01-08T00:00:00ANONYMOUSv4_computers2000200000---0.000--0.216%
2002-03-03T00:00:00ANONYMOUSv4_computers4096409600---0.001--0.457%
2002-05-05T00:00:00ANONYMOUSv4_computers8192819200---0.002--0.820%
2002-08-03T00:00:00ANONYMOUSv4_computers327683276800---0.007--1.978%
2003-01-25T00:00:00ANONYMOUSv4_computers655366553600---0.015--2.772%
2003-09-14T00:00:00ANONYMOUSv4_computers13107213107200---0.029--3.694%
2016-03-17T18:55:13alpertronManual testing20000050000006---0.016--3.301%
unknown100000030000000---0.091--5.772%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-07-03T00:00:00ANONYMOUSv4_computers21255--0.005--
2000-10-28T00:00:00ANONYMOUSv4_computers21256--0.010--
2001-11-24T00:00:00ANONYMOUSv4_computers21257--0.020--
2003-08-31T00:00:00ANONYMOUSv4_computers21258--0.039--


ECM factoring results:

Old Calculation Method

Total ECM effort:14.211 GHz-days
Estimated T-Level:25.344
DigitsB1CurvesCompleteFacMiss
2011000325 / 1003.2503.815%
2550000325 / 2801.16131.261%
3025000044 / 6400.06993.351%

New Calculation Method

Total ECM effort:14.211 GHz-days
Estimated T-Level:25.344
DigitsB1CompleteFacMiss
201100014.8080.000%
25500001.62019.795%
302500000.13287.678%
3510000000.00999.129%


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
5000050000002817.971
25000025000000446.240


Lucas-Lehmer results:
No L-L results for M978323


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-28T14:03:23Oliver KruseGTX-1
3360190105418697119
D8C1A8C84A57DB__no
2017-10-15T16:54:49kkmrkkblmbrbkc4.xlarge
3360190105418697119
D8C1A8C84A57DB__no
2020-04-25T04:21:47Oliver KruseAddPrpType5
3360190105418697119
E7946F47E1502F__no


P-1 factor-bounds graph:
B1 = 1000000, B2 = 30000000 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 131072, B2 = 13107200 (P-1 stage 2)
B1 = 200000, B2 = 5000000 (P-1 stage 2)
B1 = 65536, B2 = 6553600 (P-1 stage 2)
B1 = 32768, B2 = 3276800 (P-1 stage 2)
B1 = 200000 (P-1 stage 1)
B1 = 131072 (P-1 stage 1)
B1 = 65536 (P-1 stage 1)
B1 = 8192, B2 = 819200 (P-1 stage 2)
B1 = 32768 (P-1 stage 1)
B1 = 4096, B2 = 409600 (P-1 stage 2)
B1 = 2000, B2 = 200000 (P-1 stage 2)
B1 = 8192 (P-1 stage 1)
B1 = 4096 (P-1 stage 1)
B1 = 2000 (P-1 stage 1)
101
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104
105
106
101
102
103
104
105
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108
109
TF factor-bounds graph:
267
258
257
256
255
250
260
270
280
290
2100
Last modified: 2020-04-25T04:21:47+00:00