is 2 3744329 - 1
has 1127156 decimal digits
takes 0.393 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L1430EDB82DCC134Cdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2677.935767.1642%2000001303648501.11056.8092%9.046269.4000%2.2358%
PrimeNet2600.041063.3333%160003200000.00503.0900%0.046064.4663%1.1330%
GPU722640.950665.6250%220004500000.00692.1101%0.957566.3503%0.7253%
Difference+3+6.9851+1.5392%+178000+129914850+1.1036+4.6991%+8.0887+3.0497%+3.0497%

Known prime factors (1 factor, 69.3 bits, 0.00185003% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
37443297122993691356297197832169.27195117091625179
33 × 13 × 98179 × 2760151
2009-09-1098179276015144.1810.03700.0428

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2009-07-07T04:43:00Carsten Kossendeyleela20000265000---0.005--1.150%
2022-05-25T22:30:18Jocelyn LaroucheManual testing200000130364850-
skipped known factor: 712299369135629719783
--1.110--6.809%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1997-12-04T00:00:00ANONYMOUSv4_computers21260--0.041--
2009-03-04T08:06:00S485122USB-A260261--0.041--


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)
1998-03-23T00:00:00mhoneyv4_computers1430EDB82DCC134C0.393
1999-08-16T00:00:00ANONYMOUSv4_computers1430EDB82DCC134C0.393


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-20T06:17:48kkmrkkblmbrbkManual testing
712299369135629719783
B2D2FF96750DAA__no
2017-12-04T00:48:12Oliver KruseGTX-1
712299369135629719783
B2D2FF96750DAA__no


P-1 factor-bounds graph:
B1 = 200000, B2 = 130364850 (P-1 stage 2)
B1 = 200000 (P-1 stage 1)
B1 = 20000, B2 = 265000 (P-1 stage 2)
B1 = 20000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
109
TF factor-bounds graph:
267
261
260
250
260
270
280
290
2100
Last modified: 2022-05-25T22:30:18+00:00