is 2 3250147 - 1
has 978392 decimal digits
takes 0.277 GHz-days to do one PRP test
Last-known PrimeNet details:
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actualunknown32501432501470.05987.6021%0.05987.6021%-55.7312%
PrimeNet2600.047363.3333%140002600000.00342.7709%0.050666.1042%2.7709%
GPU722641.095165.6250%160002800000.00371.6548%1.098967.2798%1.6548%
Difference-64-1.0951-65.6250%+309014+2970147+0.0560+5.9472%-1.0391-59.6778%-59.6778%

Known prime factors (1 factor, 33.8 bits, 0.00103855% known):
Remaining cofactor is not a probable-prime

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
3250147144891553271133.7542229
3 × 743
3743-5.220e-105.346e-69.313e-6

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2020-12-25T20:19:20Jocelyn LaroucheManual testing108338108338---0.013--1.568%
2021-01-07T11:46:56Jocelyn LaroucheManual testing325014325014---0.040--2.582%
2021-01-07T15:36:00Jocelyn LaroucheManual testing32501432501476---0.060--5.124%


Trial Factoring results:
Exponent "3250147" not found


ECM factoring results:
ECM Summary

B1B2factorcurvesGHz-days
50000500000030.353


Lucas-Lehmer results:
Exponent "3250147" not found


PRP results:
dateuseridcompidcofactorsres64PRP
2017-11-02T15:28:24Oliver KruseGTX-0
14489155327
9512CEC7F8E46E__no
2017-12-13T19:48:26kkmrkkblmbrbkc4.xlarge
14489155327
9512CEC7F8E46E__no


P-1 factor-bounds graph:
B1 = 325014, B2 = 3250147 (stage 2)
B1 = 325014 (stage 1)
B1 = 108338 (stage 1)
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TF factor-bounds graph:
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Last modified: 2021-01-07T15:36:00+00:00