is 2 381011 - 1
has 114696 decimal digits
takes 0.004 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
Actual26777.987071.6418%6553665536000.00592.3896%77.992972.3194%0.6776%
PrimeNet2400.000052.5000%40001200000.000117.1966%0.000160.6684%8.1684%
GPU722440.000056.8182%70002000000.000212.7639%0.000362.3299%5.5117%
Difference+23+77.9870+14.8236%+58536+6353600+0.0056-10.3744%+77.9927+9.9895%+9.9895%

Known prime factors (1 factor, 61.4 bits, 0.01610586% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
38101129698916615991625511961.3653897383096025
33 × 52 × 5773900883
2007-08-132757739008831.39004.42208.2591

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2001-12-22T00:00:00ANONYMOUSv4_computers2000200000---0.000--0.163%
2002-01-08T00:00:00ANONYMOUSv4_computers4096409600---0.000--0.359%
2002-01-15T00:00:00ANONYMOUSv4_computers4096409600---0.000--0.359%
2002-01-28T00:00:00Jocelyn Larouchev4_computers100001000000---0.001--0.775%
2002-02-03T00:00:00ANONYMOUSv4_computers500001000000---0.001--1.439%
2002-06-15T00:00:00ANONYMOUSv4_computers327683276800---0.003--1.675%
2002-08-24T00:00:00ANONYMOUSv4_computers655366553600---0.006--2.390%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-11-24T00:00:00ANONYMOUSv4_computers252253--0.002--
2000-04-27T00:00:00ANONYMOUSv4_computers21254--0.006--
2022-03-07T06:37:21LordJuliusManual testing254255--0.006--
2001-03-17T00:00:00ANONYMOUSv4_computers21256--0.025--
2002-01-28T00:00:00ANONYMOUSv4_computers21257--0.050--
2004-01-18T00:00:00ANONYMOUSv4_computers21258--0.101--


ECM factoring results:

Old Calculation Method

Total ECM effort:10.518 GHz-days
Estimated T-Level:26.125
DigitsB1CurvesCompleteFacMiss
2011000425 / 1004.2501.396%
2550000425 / 2801.51821.859%
30250000144 / 6400.22579.838%

New Calculation Method

Total ECM effort:10.518 GHz-days
Estimated T-Level:26.125
DigitsB1CompleteFacMiss
201100023.8990.000%
25500003.0284.840%
302500000.28775.049%
3510000000.02297.832%
4030000000.00199.860%


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
5000050000002812.953
250000250000001447.565


Lucas-Lehmer results:
No L-L results for M381011


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-23T05:46:11Oliver KruseOllaptop
2969891661599162551
9DB67D24807AB3__no
2017-11-02T10:19:47kkmrkkblmbrbkc4.xlarge
2969891661599162551
9DB67D24807AB3__no
2020-04-18T15:23:56Oliver KruseAddPrpType5
2969891661599162551
29DAC35D4BAA75__no


P-1 factor-bounds graph:
B1 = 65536, B2 = 6553600 (P-1 stage 2)
B1 = 32768, B2 = 3276800 (P-1 stage 2)
B1 = 50000, B2 = 1000000 (P-1 stage 2)
B1 = 65536 (P-1 stage 1)
B1 = 10000, B2 = 1000000 (P-1 stage 2)
B1 = 50000 (P-1 stage 1)
B1 = 32768 (P-1 stage 1)
B1 = 4096, B2 = 409600 (P-1 stage 2)
B1 = 2000, B2 = 200000 (P-1 stage 2)
B1 = 10000 (P-1 stage 1)
B1 = 4096 (P-1 stage 1)
B1 = 2000 (P-1 stage 1)
100
101
102
103
104
105
100
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
267
258
257
256
255
254
253
250
260
270
280
290
2100
Last modified: 2022-03-07T06:37:21+00:00