is 2 4291141577 - 1
has 1291762331 decimal digits
takes 1,161,439.187 GHz-days to do one PRP test
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2710.111454.9296%----0.111454.9296%
Target292233,731.312965.2174%2200000010400000000230,537.66634.3564%464,268.979366.7327%
Difference-21-233,731.2015-10.2878%-22000000-10400000000-230,537.6663-4.3564%-464,268.8679-11.8031%

Known prime factors (6 factors, 338.3 bits, 0.00000788% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
42911415776179243870891239.16972
23 × 32
2012-08-20991.999e-110.00350.0072
4291141577149675018205771443.7671744
24 × 109
2019-07-14161093.147e-100.00830.0128
42911415777604589457096331549.43488608
25 × 3 × 13 × 71
2019-07-1432713.445e-80.01340.0256
42911415772080063118806513076872167.49524236710459
13 × 809 × 2304527
2020-05-0980923045270.010249.57692.033
42911415775975607967393205068572169.01869627252564
22 × 33 × 173 × 3726571
2020-05-0917337265710.049379.746148.82
42911415777751426804740534451112169.39390318935715
3 × 5 × 6021262381
2020-05-09560212623810.0288128,747240,464

57 Composite Factors:
P-1 results:
No P-1 results for M4291141577


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2019-07-1424324443.767144.16113e-11251,3368.83582e-11
2019-07-1424925049.434151.69774e-8251,3363.60501e-8
2021-01-31slaurnocebo-165026426867.495210.0132,361,7200.027
2020-05-09ramgeisr4mg31s2126943.767140.028236,7280.059
2020-05-09ramgeisr4mg31s2126967.495210.0282,361,7200.027
2020-05-09ramgeisr4mg31s2126939.169120.028236,7280.059
2020-05-09ramgeisr4mg31s2126949.434150.028236,7280.059
2020-05-09ramgeisr4mg31s26927069.018210.028236,7280.059
2020-05-09ramgeisr4mg31s26927069.393210.028236,7280.059
2023-08-11slaurpalvi2-rtx270271--0.056--
Missing TF 71 - 72
Missing TF 72 - 73
Missing TF 73 - 74
Missing TF 74 - 75
2022-02-03ramgeisr4mg31s275276--1.783--
2022-02-06ramgeisr4mg31s276277--3.566--
2022-04-07ramgeisr4mg31s277278--7.133--
2022-04-27ramgeisr4mg31s278279--14.27--


ECM factoring results:
No ECM results for M4291141577


Lucas-Lehmer results:
No L-L results for M4291141577


PRP results:
No PRP results for M4291141577


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
279
278
277
276
271
270
269
268
250
244
this exponent TF target: 92
250
260
270
280
290
2100
Last modified: 2023-08-11T20:41:18+00:00