is 2 150959 - 1
has 45444 decimal digits
takes 0.000 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LB061C140AC2A7D__double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual267196.834473.1343%10000000020000000000.942712.0820%197.777076.3803%3.2459%
PrimeNet2400.000055.0000%1600340000.000010.6664%0.000059.7999%4.7999%
GPU722440.000059.0909%2600500000.00007.1479%0.000062.0150%2.9241%
Difference+23+196.8343+14.0434%+99997400+1999950000+0.9427+4.9342%+197.7770+14.3652%+14.3652%

Known prime factors (1 factor, 62.8 bits, 0.04160438% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
15095980603722804435225911962.80626697223353505
5 × 5339444670701
2008-01-13553394446707017.22961,347.52,516.7

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2001-04-29T00:00:00ANONYMOUSv4_computers10000010000000---0.003--2.512%
2002-06-02T00:00:00ANONYMOUSv4_computers327683276800---0.001--1.417%
2002-07-20T00:00:00ANONYMOUSv4_computers655366553600---0.002--2.057%
2002-09-22T00:00:00Jocelyn Larouchev4_computers400000400000---0.002--1.222%
2002-09-29T00:00:00Jocelyn Larouchev4_computers500000500000---0.002--1.361%
2002-10-19T00:00:00Jocelyn Larouchev4_computers600000600000---0.003--1.481%
2002-11-09T00:00:00Jocelyn Larouchev4_computers10000001000000---0.005--1.852%
2003-02-09T00:00:00ANONYMOUSv4_computers13107213107200---0.004--2.826%
2003-09-29T00:00:00ANONYMOUSv4_computers26214426214400---0.008--3.712%
2016-10-31T19:01:38kkmrkkblmbrbkManual testing100000000200000000012---0.943--12.082%


P+1 Factoring results:
dateuseridcompidb1b2startfactorSmoothdigitsbits*ghz-days
2021-07-04T23:49:20ATHec2-P_150000000500000000027--1.576


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-10-29T00:00:00ANONYMOUSv4_computers252253--0.004--
2000-05-05T00:00:00ANONYMOUSv4_computers21254--0.016--
2022-03-07T03:53:40LordJuliusManual testing254255--0.016--
2001-01-08T00:00:00ANONYMOUSv4_computers21256--0.064--
2002-06-29T00:00:00ANONYMOUSv4_computers21257--0.127--


ECM factoring results:

Old Calculation Method

Total ECM effort:12.087 GHz-days
Estimated T-Level:29.773
DigitsB1CurvesCompleteFacMiss
2011000884 / 1008.8400.014%
2550000884 / 2803.1574.231%
30250000611 / 6400.95538.465%
35100000018 / 15660.01198.857%

New Calculation Method

Total ECM effort:12.087 GHz-days
Estimated T-Level:29.773
DigitsB1CompleteFacMiss
201100067.4090.000%
25500009.9240.005%
302500001.07634.085%
3510000000.09391.162%
4030000000.00799.342%


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
5000050000002730.917
250000250000005939.96
1000000100000000181.209


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2001-01-14T00:00:00ANONYMOUSv4_computersB061C140AC2A7D__0.000


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-21T23:13:55Oliver KruseDoppelherz
8060372280443522591
41D47DBA142BA0__no
2017-09-22T10:01:38Oliver KruseManual testing
8060372280443522591
41D47DBA142BA0__no
2017-10-11T21:50:15kkmrkkblmbrbkc4.xlarge41D47DBA142BA0__no
2020-04-17T15:45:57Oliver KruseAddPrpType5
8060372280443522591
CD0B2DEDC1DF5E__no


P-1 factor-bounds graph:
B1 = 100000000, B2 = 2000000000 (P-1 stage 2)
B1 = 100000000 (P-1 stage 1)
B1 = 262144, B2 = 26214400 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 131072, B2 = 13107200 (P-1 stage 2)
B1 = 100000, B2 = 10000000 (P-1 stage 2)
B1 = 600000 (P-1 stage 1)
B1 = 500000 (P-1 stage 1)
B1 = 65536, B2 = 6553600 (P-1 stage 2)
B1 = 400000 (P-1 stage 1)
B1 = 262144 (P-1 stage 1)
B1 = 32768, B2 = 3276800 (P-1 stage 2)
B1 = 131072 (P-1 stage 1)
B1 = 100000 (P-1 stage 1)
B1 = 65536 (P-1 stage 1)
B1 = 32768 (P-1 stage 1)
100
101
102
103
104
105
106
107
108
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
1013
TF factor-bounds graph:
267
257
256
255
254
253
250
260
270
280
290
2100
Last modified: 2022-03-07T03:53:40+00:00