is 2 868209841 - 1
has 261357205 decimal digits
takes 37,751.050 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
Actual2744.406659.4595%----4.406659.4595%0.0000%
PrimeNet281564.072562.9630%32000002400000001,015.17085.6621%1,579.243365.0600%2.0971%
GPU722859,025.163164.7059%50000002400000001,122.47444.2666%10,147.637566.2117%1.5058%
Difference-11-9,020.7565-5.2464%-5000000-240000000-1,122.4744-4.2666%-10,143.2309-6.7523%-1.5058%

Known prime factors (2 factors, 133.4 bits, 0.00001536% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
868209841667341239345481772012065.85538432024600
23 × 52 × 107 × 1795889
2012-02-2610717958890.00886.175311.522
8682098412092921944930411821832167.504120530881251
35 × 11 × 181 × 249127
2022-09-222432491270.04580.87021.5983

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
8682098411396693124583217176173453759714880800978341133.359
P-1 results:
No P-1 results for M868209841


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2012-02-26T00:37:00laleraManual testing??65.855200.00077,3560.001
2010-07-29T08:10:00lindedskynet-node055263264--0.002--
2022-09-22T09:42:24TJAOIManual testing267268*67.504210.01277,3560.024
2022-09-25T22:01:44LordJuliusManual testing2127067.504210.04677,3560.094
2022-09-25T22:01:44LordJuliusManual testing2127065.855200.00977,3560.018
2022-09-25T22:01:44LordJuliusManual testing270271--0.275--
2022-09-25T22:01:44LordJuliusManual testing271272--0.551--
2022-09-25T22:01:44LordJuliusManual testing272273--1.102--
2022-09-25T22:01:44LordJuliusManual testing273274--2.203--


ECM factoring results:
No ECM results for M868209841


Lucas-Lehmer results:
No L-L results for M868209841


PRP results:
No PRP results for M868209841


P-1 factor-bounds graph:
101
102
103
101
102
103
104
105
106
107
TF factor-bounds graph:
274
273
272
271
270
268
264
2
250
260
270
280
290
2100
Last modified: 2022-09-25T22:01:44+00:00