is 2 1195429 - 1
has 359860 decimal digits
takes 0.037 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LEFCD02710DECFE9Fdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26724.856368.6567%300000100000000.03684.1592%24.893169.9603%1.3036%
PrimeNet2560.008062.5000%5000800000.00042.2682%0.008463.3506%0.8506%
GPU722600.128565.0000%5000280000.00030.8022%0.128865.2808%0.2808%
Difference+7+24.7278+3.6567%+295000+9972000+0.0366+3.3570%+24.7644+4.6796%+4.6796%

Known prime factors (2 factors, 169.5 bits, 0.01417547% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
11954293221394842296759663616892478.092134738024688072636
22 × 3 × 227 × 1639607 × 30167777
2008-07-2516396073016777798,8270.14200.1484
119542931899672137984189879647918012891.3661334235330495754657100
22 × 52 × 13 × 73 × 419 × 20051 × 1673463191
2018-07-27200511673463191780,894,6274.05517.5722

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
119542910276143929625991752900367028666629802215523477118
89
52169.458
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2002-05-11T00:00:00Jocelyn Larouchev4_computers10001000---4.44667e-5--0.005%
2002-09-22T00:00:00Jocelyn Larouchev4_computers40004000---0.000--0.049%
2002-09-22T00:00:00Jocelyn Larouchev4_computers50005000---0.000--0.065%
2002-09-29T00:00:00Jocelyn Larouchev4_computers80008000---0.000--0.111%
2002-10-07T00:00:00Jocelyn Larouchev4_computers1000010000---0.000--0.140%
2003-09-21T00:00:00ANONYMOUSv4_computers100001000000---0.003--0.991%
unknown30000010000000---0.037--4.159%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-07-27T00:00:00ANONYMOUSv4_computers21256--0.008--
2001-10-27T00:00:00ANONYMOUSv4_computers21257--0.016--
2003-05-19T00:00:00ANONYMOUSv4_computers21258--0.032--


ECM factoring results:

Old Calculation Method

Total ECM effort:18.353 GHz-days
Estimated T-Level:25.344
DigitsB1CurvesCompleteFacMiss
2011000322 / 1003.2203.931%
2550000322 / 2801.15031.599%
3025000044 / 6400.06993.351%

New Calculation Method

Total ECM effort:18.353 GHz-days
Estimated T-Level:25.344
DigitsB1CompleteFacMiss
201100014.6920.000%
25500001.60920.008%
302500000.13187.737%
3510000000.00999.133%


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
5000050000002278.366
500005000000511.880
25000025000000448.108


Lucas-Lehmer results:
No L-L results for M1195429


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-29T12:30:54Oliver KruseGTX-3
322139484229675966361689
7E719D0464E36B__no
2017-10-17T20:21:07Oliver KruseThreadripper
322139484229675966361689
7E719D0464E36B__no
2018-01-02T21:27:15ATHec2-8x
322139484229675966361689
7E719D0464E36B__no
2018-07-28T11:56:08Gabriel Lignelli3317U
322139484229675966361689
3189967213798418987964791801
9FC5DDA2A97872__no
2018-07-28T16:38:20Oliver KruseGTX-0
322139484229675966361689
3189967213798418987964791801
9FC5DDA2A97872__no


P-1 factor-bounds graph:
B1 = 300000, B2 = 10000000 (P-1 stage 2)
B1 = 300000 (P-1 stage 1)
B1 = 10000, B2 = 1000000 (P-1 stage 2)
B1 = 10000 (P-1 stage 1)
B1 = 8000 (P-1 stage 1)
B1 = 5000 (P-1 stage 1)
B1 = 4000 (P-1 stage 1)
B1 = 1000 (P-1 stage 1)
102
103
104
105
106
107
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
267
258
257
256
250
260
270
280
290
2100
Last modified: 2020-09-11T10:24:10+00:00