is 2 702347 - 1
has 211428 decimal digits
takes 0.014 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26742.306670.1493%150000042998755806.825411.2678%49.132073.5128%3.3635%
Target2440.000054.5455%120004500000.001016.5063%0.001062.0483%7.5029%
Difference+23+42.3066+15.6038%+1488000+4299425580+6.8244-5.2385%+49.1310+11.4645%-4.1393%

Known prime factors (3 factors, 192.7 bits, 0.02743111% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
7023475618777722.4224
22
-447.962e-131.158e-72.358e-7
70234745863259111032.0953265
5 × 653
2008-07-1656531.390e-91.167e-61.934e-6
70234738531654758416853062073774763436174090105742138.145274306395260582397746938299469038624
25 × 32 × 11 × 29 × 37 × 401 × 857 × 22283 × 211691 × 585391 × 85036181
2022-12-21585391850361812.141e+110.15020.2506

4 Composite Factors:
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-03-17T18:50:28alpertronManual testing5000001500000012-
skipped known factor: 5618777
skipped known factor: 4586325911
--0.037--4.511%
2022-12-21T20:24:01USAFSS6917th_Scty_Sq1500000429987558042138.1456.8250.02813.6511.268%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-07-16T09:24:00J FeitsmaManual testing??32.095105.75722e-100.0291.20379e-9


ECM factoring results:
Total ECM effort:11.303 GHz-days
Estimated T-Level:25.658
DigitsB1CompleteFacMiss
201100014.8080.000%
25500001.62019.795%
302500000.13287.678%
3510000000.00999.129%


ECM Summary

B1B2factorcurvesGHz-days
5000050000002816.340
25000025000000444.964


Lucas-Lehmer results:
No L-L results for M702347


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-27T15:57:08Oliver KruseGTX-3
5618777
4586325911
73FEE8302B6632__no
2017-09-28T09:45:33Oliver KruseManual testing
5618777
4586325911
73FEE8302B6632__no
2017-11-08T22:42:44kkmrkkblmbrbkc4.large
5618777
4586325911
73FEE8302B6632__no
2020-04-20T15:38:03Oliver KruseAddPrpType5
5618777
4586325911
CCBED18F23FFDD__no
2022-12-25T21:16:14LordJuliusWhiteBox
5618777
4586325911
385316547584168530620737747634361740901057
CCBED18F23FFDD17no


P-1 factor-bounds graph:
B1 = 1500000, B2 = 4299875580 (P-1 stage 2)
B1 = 1500000 (P-1 stage 1)
B1 = 500000, B2 = 15000000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
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TF factor-bounds graph:
267
2
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Last modified: 2022-12-25T21:16:14+00:00