is 2 4007072801 - 1
has 1206249108 decimal digits
takes 1,005,292.940 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
Actual2720.238755.5556%----0.238755.5556%
Target292250,300.956565.2174%200000009600000000197,146.23064.2367%447,447.187166.6910%
Difference-20-250,300.7178-9.6618%-20000000-9600000000-197,146.2306-4.2367%-447,446.9484-11.1355%

Known prime factors (6 factors, 293.6 bits, 0.00000733% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
4007072801240424368071134.4853
3
2012-08-20135.752e-130.00040.0007
40070728011923394944491237.48524
23 × 3
2012-08-20884.830e-120.00290.0059
4007072801636964292446971445.8567948
22 × 1987
2019-06-28419872.250e-90.04080.0734
40070728011022284412991131546.53912756
22 × 3 × 1063
2019-06-28410633.208e-90.02240.0393
4007072801159279405411286014172063.7881987478308
22 × 151 × 569 × 5783
2019-12-2356957830.00050.31030.4213
4007072801488875747310783626732065.4066100160536
23 × 6172 × 2003
2020-09-073806893806890.0032138.49281.84

57 Composite Factors:
P-1 results:
No P-1 results for M4007072801


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2019-06-2823423534.485114.07970e-152,043,9200.245
2019-06-2823723837.485122.61101e-132,043,9200.245
2019-06-2824524645.856141.08061e-9236,7012.31416e-9
2019-06-2824624746.539158.68944e-10236,7011.86087e-9
2019-12-24slaurpalvi2-rtx2126463.788200.001221,0570.002
2020-09-07slaurnocebo-165026426865.406200.0142,043,9200.029
2023-07-27slaurpalvi2-rtx268271--0.104--
2022-01-27ramgeisr4mg31s27127237.485120.1192,043,9200.245
2022-01-27ramgeisr4mg31s27127234.485110.1192,043,9200.245
Missing TF 72 - 73
Missing TF 73 - 74
Missing TF 74 - 75
2022-02-04ramgeisr4mg31s275276--1.910--
2022-02-09ramgeisr4mg31s276277--3.819--
2022-04-07ramgeisr4mg31s277278--7.639--
2022-04-21ramgeisr4mg31s278279--15.28--


ECM factoring results:
No ECM results for M4007072801


Lucas-Lehmer results:
No L-L results for M4007072801


PRP results:
No PRP results for M4007072801


P-1 factor-bounds graph:
100
101
102
103
104
105
106
100
101
102
103
104
105
106
TF factor-bounds graph:
279
278
277
276
272
271
268
264
247
246
238
235
this exponent TF target: 92
250
260
270
280
290
2100
Last modified: 2023-07-27T21:17:02+00:00