is 2 3353477 - 1
has 1009498 decimal digits
takes 0.352 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L188650E97498EB2Ddouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26817.774167.6471%11178251199121001.15597.6346%18.929970.1171%2.4700%
PrimeNet2600.045863.3333%140002800000.00432.8402%0.050164.3748%1.0414%
GPU722641.061465.6250%180003000000.00511.7557%1.066566.2285%0.6035%
Difference+4+16.7127+2.0221%+1099825+119612100+1.1508+5.8789%+17.8635+3.8886%+3.8886%

Known prime factors (1 factor, 66.4 bits, 0.00197998% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
3353477972456269550408846792066.39814499223784007
3 × 197 × 619 × 39633883
2009-06-25619396338836.22420.32890.6142

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-03-11T11:50:26Jocelyn LaroucheManual testing33534736888246---0.079--3.522%
2022-01-09T20:45:53Jocelyn LaroucheManual testing1117825119912100-
skipped known factor: 97245626955040884679
--1.156--7.635%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-06-01T00:00:00ANONYMOUSv4_computers21260--0.046--
2009-03-29T07:58:00S485122USB-A260261--0.046--
2022-04-23T01:02:32LordJuliusManual testing21262--0.183--
2022-04-23T01:02:32LordJuliusManual testing262263--0.293--
2022-04-23T01:02:32LordJuliusManual testing263264--0.585--
2022-04-23T01:02:32LordJuliusManual testing264265--1.114--
2022-04-23T01:02:32LordJuliusManual testing265266--2.228--
2022-04-23T01:02:32LordJuliusManual testing26626766.398201.8200.7163.699
2021-05-14T11:27:10Jocelyn LaroucheManual testing267268--8.913--


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)
1998-06-01T00:00:00ANONYMOUSv4_computers188650E97498EB2D0.352
1999-07-04T00:00:00ANONYMOUSv4_computers188650E97498EB2D0.352
2000-05-31T00:00:00ANONYMOUSv4_computers188650E97498EB2D0.352
2001-02-11T00:00:00ANONYMOUSv4_computers188650E97498EB2D0.352


PRP results:
dateuseridcompidcofactorsres64PRP
2017-11-04T23:25:33kkmrkkblmbrbkc4.xlarge
97245626955040884679
4D4537D1FBAB87__no
2017-11-20T13:10:05Oliver KruseGTX-2
97245626955040884679
4D4537D1FBAB87__no


P-1 factor-bounds graph:
B1 = 1117825, B2 = 119912100 (P-1 stage 2)
B1 = 1117825 (P-1 stage 1)
B1 = 335347, B2 = 3688824 (P-1 stage 2)
B1 = 335347 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-04-23T01:02:32+00:00