is 2 1799527 - 1
has 541712 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
Actual26716.512168.6567%500000150000000.10155.0583%16.613570.2422%1.5854%
PrimeNet2570.010763.1579%80001500000.00122.8700%0.011964.2153%1.0574%
GPU722610.170765.5738%90001300000.00121.5543%0.171966.1089%0.5351%
Difference+6+16.3414+3.0829%+491000+14870000+0.1002+3.5041%+16.4416+4.1333%+4.1333%

Known prime factors (1 factor, 28.5 bits, 0.00158564% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1799527388697833928.534108
22 × 33
-27272.034e-112.124e-64.322e-6

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-03-16T12:35:36alpertronManual testing5000001500000012-
skipped known factor: 388697833
--0.101--5.058%


Trial Factoring results:
No TF results for M1799527


ECM factoring results:

Old Calculation Method

Total ECM effort:17.786 GHz-days
Estimated T-Level:24.607
DigitsB1CurvesCompleteFacMiss
2011000258 / 1002.5807.480%
2550000258 / 2800.92139.729%

New Calculation Method

Total ECM effort:17.786 GHz-days
Estimated T-Level:24.607
DigitsB1CompleteFacMiss
20110009.9230.005%
25500000.91839.926%
302500000.05894.373%
3510000000.00399.730%


ECM Summary

B1B2factorcurvesGHz-days
50000500000025817.79


Lucas-Lehmer results:
No L-L results for M1799527


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-03T18:17:34Oliver KruseGTX-1
388697833
0724741FBCE646__no
2017-11-06T00:13:40bayanneiMac1
388697833
0724741FBCE646__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: 2020-12-18T11:12:54+00:00