is 2 282321289 - 1
has 84987177 decimal digits
takes 3,372.171 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2723.387459.7222%----3.387459.7222%0.0000%
PrimeNet27654.207761.8421%11000007000000084.06625.6530%138.273963.9992%2.1571%
GPU72280867.333063.7500%17000007000000093.89174.1715%961.224765.2622%1.5122%
Difference-8-863.9456-4.0278%-1700000-70000000-93.8917-4.1715%-957.8373-5.5399%-1.5122%

Known prime factors (2 factors, 132.0 bits, 0.00004676% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
282321289264124452606714881532064.51846777282284
22 × 3 × 41 × 3733 × 25469
2011-09-173733254690.02420.08520.1316
2823212892090461632150395806812167.502370227417060
22 × 3 × 5 × 23 × 2939 × 91283
2022-09-212939912830.16440.13430.1609

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
282321289552142034287063055549926949191337917219340132.020
P-1 results:
No P-1 results for M282321289


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2011-09-17T10:13:00Mr-PlonkLinux-i7??64.518200.0126,9160.024
2010-04-09T14:31:00Donna NoblePhenom9550262263--0.003--
2010-04-09T14:37:00Donna NoblePhenom9550263264--0.007--
2022-09-21T07:13:14TJAOIManual testing267268*67.502210.0596,9160.121
2022-09-25T22:01:26LordJuliusManual testing2126967.502210.1646,9160.337
2022-09-25T22:01:26LordJuliusManual testing2126964.518200.0246,9160.050
2022-09-25T22:01:26LordJuliusManual testing269270--0.424--
2022-09-25T22:01:26LordJuliusManual testing270271--0.847--
2022-09-25T22:01:26LordJuliusManual testing271272--1.694--


ECM factoring results:
No ECM results for M282321289


Lucas-Lehmer results:
No L-L results for M282321289


PRP results:
No PRP results for M282321289


P-1 factor-bounds graph:
102
103
104
102
103
104
105
TF factor-bounds graph:
272
271
270
269
268
264
263
2
250
260
270
280
290
2100
Last modified: 2022-09-25T22:01:26+00:00