is 2 3890075249 - 1
has 1171029336 decimal digits
takes 975,940.638 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
Actual27815.736658.9744%----15.736658.9744%
Target292257,828.985565.2174%190000008800000000180,946.68204.1476%438,775.667566.6601%
Difference-14-257,813.2489-6.2430%-19000000-8800000000-180,946.6820-4.1476%-438,759.9309-7.6857%

Known prime factors (6 factors, 345.4 bits, 0.00000888% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
3890075249107673470618575991753.2581383951
3 × 461317		2015-02-1434613173.459e-79.144117.077
3890075249238461534962195031754.4053064999
72 × 71 × 881		2015-02-14718819.973e-70.04190.0526
3890075249251008817074834571754.4793226272
25 × 3 × 7 × 4801		2015-02-143248019.871e-70.10620.1777
3890075249507419781647955431755.4946521979
3 × 2173993		2015-02-14321739931.877e-643.08880.475
389007524918444524155956368811960.678237071560
23 × 5 × 11 × 538799		2015-02-14115387994.324e-510.68319.945
38900752491551278636586051392172167.07219938928392
23 × 32 × 139 × 1992299		2021-05-0713919922990.007939.53473.750

57 Composite Factors:
P-1 results:
No P-1 results for M3890075249


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2021-05-07slaurnocebo-165026426867.072210.0141,983,2300.016
2021-09-22Seth_Tr108026726867.072210.0081,983,2300.016
2021-09-22Seth_Tr108026426967.072210.0301,983,2300.016
Missing TF 69 - 70
Missing TF 70 - 71
Missing TF 71 - 72
Missing TF 72 - 73
Missing TF 73 - 74
Missing TF 74 - 75
2022-02-04ramgeisr4mg31s275276--1.967--
2022-03-31ramgeisr4mg31s276277--3.934--
2022-04-28ramgeisr4mg31s277278--7.868--


ECM factoring results:
No ECM results for M3890075249


Lucas-Lehmer results:
No L-L results for M3890075249


PRP results:
No PRP results for M3890075249


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
107
TF factor-bounds graph:
278
277
276
269
268
this exponent TF target: 92
250
260
270
280
290
2100
Last modified: 2023-07-11T14:45:05+00:00