is 2 11956333 - 1
has 3599215 decimal digits
takes 4.603 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP98BD1395EDA22842verified PRP

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2672.485264.1791%400000120000000.57615.9365%3.061366.3056%2.1265%
PrimeNet2640.297762.5000%5500015000000.07474.1116%0.372364.0418%1.5418%
GPU722684.985264.7059%8000020000000.10312.9395%5.088365.7433%1.0375%
Difference-1-2.5000-0.5268%+320000+10000000+0.4731+2.9971%-2.0270+0.5623%+0.5623%

Known prime factors (4 factors, 246.9 bits, 0.00206518% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1195633310511051466971339.93543956
22 × 33 × 11 × 37
-27379.276e-91.538e-53.068e-5
1195633352823722517170777991962.196220902690303
32 × 24544743367
2016-07-089245447433670.0621746.531,394.3
1195633357270989597586586343532272.278239500646216472
23 × 3 × 19 × 443 × 823 × 1440583
2021-11-218231440583121.750.04420.0818
1195633367276365935052038068312272.511281341971384755
5 × 17 × 192 × 47 × 67 × 751 × 3877
2021-11-217513877140.850.00050.0009

11 Composite Factors:
exponentprime factorscomposite factordigitsbits*
11956333555232866054924127005805687990331102.131
11956333601978319224536098357755574868204134112.213
11956333707145344854039260481198110568720734112.446
119563333025266862786687954380677104331719502904741134.474
119563333553788086116829425424620788742979464496941134.706
119563333852984053629793847363658409841834327266534344144.789
1195633331798735696069746125080644515307812022509006111107
759
53174.409
1195633337354049475878808622914722556672852762588725778017
393
53174.642
1195633340498913689117461772630461995833990191290608424202
822071
56184.724
1195633320352896051202408170923269222882565074409215964778
6414022020057
63206.985
1195633321393033789607899263737974346448803751740547667267
4082561938969801261301729
75246.920
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-11-21T06:28:35nordisweet164000004000002272.5110.2239.2060.4472.404%
2021-11-21T18:49:00nordisweet16400000120000002272.2780.5769.2061.1525.937%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2016-07-08T13:30:15TJAOIManual testing262263*62.196190.0119.530.022


ECM factoring results:
No ECM results for M11956333


Lucas-Lehmer results:
No L-L results for M11956333


PRP results:
dateuseridcompidcofactorsres64PRP
2021-12-09T13:48:24LaurVZero818
1051105146697
5282372251717077799
5727098959758658634353
6727636593505203806831
98BD1395EDA22842no


P-1 factor-bounds graph:
B1 = 400000, B2 = 12000000 (P-1 stage 2)
B1 = 400000 (P-1 stage 1)
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TF factor-bounds graph:
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2100
Last modified: 2021-12-09T13:48:24+00:00