is 2 2957018387 - 1
has 890151233 decimal digits
takes 512,378.730 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
Actual2710.161754.9296%----0.161754.9296%
Target291169,592.140464.8352%150000007200000000102,122.49324.1310%271,714.633666.2878%
Difference-20-169,591.9787-9.9056%-15000000-7200000000-102,122.4932-4.1310%-271,714.4719-11.3582%

Known prime factors (6 factors, 367.1 bits, 0.00001241% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
29570183874424231770261671548.65274809
7 × 10687		2012-12-207106871.416e-80.14800.2731
295701838745186138831379271652.005764049
3 × 11 × 132 × 137		2019-07-281691692.362e-70.04250.0864
295701838794004967181220949291963.0271589522872
23 × 7 × 61 × 465317		2019-09-21614653170.00076.384111.897
2957018387288440950546039846092064.6454877226192
24 × 3 × 571 × 177949		2020-01-125711779490.00162.57154.5495
29570183875004251083002280833612168.76284616502640
24 × 3 × 5 × 47 × 7501463		2020-01-124775014630.0288102.70191.79
295701838711502496239539865526572269.962194494837944
23 × 3 × 11 × 736722871		2020-12-29117367228710.060010,08518,836

57 Composite Factors:
P-1 results:
No P-1 results for M2957018387


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2019-07-2825225352.005163.33326e-8174,1417.11657e-8
2019-09-21slaurpalvi2-rtx2126463.027190.001163,5420.003
2022-01-12slaurpalvi2-rtx26426864.645200.0191,041,1200.039
2020-01-12Karl-Heinz_HofmannALDI2126964.645200.0401,041,1200.039
2020-01-12Karl-Heinz_HofmannALDI2126948.652150.040163,5420.086
2020-01-12Karl-Heinz_HofmannALDI2126952.005160.040163,5420.086
2020-01-12Karl-Heinz_HofmannALDI2126968.762210.040163,5420.086
2020-01-12Karl-Heinz_HofmannALDI2126963.027190.040163,5420.086
2020-12-29Karl-Heinz_HofmannALDI26927169.962220.1211,041,1200.249
Missing TF 71 - 72
Missing TF 72 - 73
Missing TF 73 - 74
2022-01-31ramgeisr4mg31s274275--1.294--
2022-02-06ramgeisr4mg31s275276--2.588--
2022-04-03ramgeisr4mg31s276277--5.176--
2022-04-28ramgeisr4mg31s277278--10.35--


ECM factoring results:
No ECM results for M2957018387


Lucas-Lehmer results:
No L-L results for M2957018387


PRP results:
No PRP results for M2957018387


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
278
277
276
275
271
269
268
264
253
this exponent TF target: 91
250
260
270
280
290
2100
Last modified: 2023-07-11T14:45:05+00:00