is 2 3436289 - 1
has 1034427 decimal digits
takes 0.361 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LD589A389B8406446double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26817.345767.6471%10000001266688501.19507.6236%18.540770.1135%2.4665%
PrimeNet2600.044763.3333%150002800000.00452.8994%0.049264.3964%1.0631%
GPU722641.035865.6250%190003400000.00561.8534%1.041466.2621%0.6371%
Difference+4+16.3099+2.0221%+981000+126328850+1.1894+5.7702%+17.4993+3.8514%+3.8514%

Known prime factors (1 factor, 61.7 bits, 0.00179628% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
343628938125319483812519991961.725554745533391
32 × 7 × 23 × 3947 × 96997
2009-06-273947969970.15890.00140.0015

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2022-01-21T00:59:33Jocelyn LaroucheManual testing90000900001961.7250.0140.7220.0270.820%
2022-04-10T23:56:38Jocelyn LaroucheManual testing1000000126668850-
skipped known factor: 3812531948381251999
--1.195--7.624%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2009-03-22T21:04:00S485122USB-A260261--0.045--
2022-05-05T06:32:35LordJuliusManual testing2126261.725190.1590.7330.323
2022-05-05T06:32:35LordJuliusManual testing262263--0.286--
2022-05-05T06:32:35LordJuliusManual testing263264--0.571--
2022-05-05T06:32:35LordJuliusManual testing264265--1.087--
2022-05-05T06:32:35LordJuliusManual testing265266--2.175--
2022-05-05T06:32:35LordJuliusManual testing266267--4.349--
2021-04-16T10:34:11Jocelyn LaroucheManual testing267268--8.699--


ECM factoring results:

Old Calculation Method

Total ECM effort:0.000 GHz-days
DigitsB1CurvesCompleteFacMiss

New Calculation Method

Total ECM effort:0.000 GHz-days
DigitsB1CompleteFacMiss


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-08-31T00:00:00ANONYMOUSv4_computersD589A389B84064460.361


PRP results:
dateuseridcompidcofactorsres64PRP
2017-11-06T14:28:13Oliver KruseGTX-2
3812531948381251999
92E588D360D834__no
2017-12-16T09:55:48kkmrkkblmbrbkc4.xlarge
3812531948381251999
92E588D360D834__no


P-1 factor-bounds graph:
B1 = 1000000, B2 = 126668850 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 90000 (P-1 stage 1)
102
103
104
105
106
102
103
104
105
106
107
108
109
TF factor-bounds graph:
268
267
266
265
264
263
262
261
250
260
270
280
290
2100
Last modified: 2022-05-05T06:32:35+00:00