is 2 1812793 - 1
has 545706 decimal digits
takes 0.098 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26716.391268.6567%500000150000000.10155.0628%16.492770.2436%1.5869%
PrimeNet2570.010663.1579%80001500000.00122.8740%0.011864.2167%1.0588%
GPU722610.169565.5738%90001300000.00121.5566%0.170766.1097%0.5359%
Difference+6+16.2218+3.0829%+491000+14870000+0.1002+3.5062%+16.3220+4.1339%+4.1339%

Known prime factors (1 factor, 29.2 bits, 0.00160979% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1812793609098449929.182168
23 × 3 × 7
-884.089e-116.293e-71.281e-6

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-03-16T12:37:14alpertronManual testing5000001500000012-
skipped known factor: 609098449
--0.101--5.063%


Trial Factoring results:
No TF results for M1812793


ECM factoring results:

Old Calculation Method

Total ECM effort:19.594 GHz-days
Estimated T-Level:24.607
DigitsB1CurvesCompleteFacMiss
2011000258 / 1002.5807.480%
2550000258 / 2800.92139.729%

New Calculation Method

Total ECM effort:19.594 GHz-days
Estimated T-Level:24.607
DigitsB1CompleteFacMiss
201100010.6220.002%
25500000.97437.742%
302500000.06294.007%
3510000000.00399.710%


ECM Summary

B1B2factorcurvesGHz-days
500005000000402.760
50000650000021816.83


Lucas-Lehmer results:
No L-L results for M1812793


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-03T21:29:52Oliver KruseGTX-3
609098449
759B354C0282D3__no
2017-11-11T04:02:31kkmrkkblmbrbkc4.xlarge
609098449
759B354C0282D3__no


P-1 factor-bounds graph:
B1 = 500000, B2 = 15000000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
108
TF factor-bounds graph:
267
220
230
240
250
260
270
280
290
2100
Last modified: 2021-03-05T18:08:49+00:00