is 2 1794659 - 1
has 540247 decimal digits
takes 0.097 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
Actual26716.556968.6567%500000150000000.10155.0567%16.658370.2416%1.5849%
PrimeNet2570.010763.1579%80001400000.00122.8159%0.011964.1953%1.0374%
GPU722610.171265.5738%80001300000.00121.4942%0.172366.0882%0.5144%
Difference+6+16.3857+3.0829%+492000+14870000+0.1003+3.5625%+16.4860+4.1535%+4.1535%

Known prime factors (2 factors, 98.3 bits, 0.00547586% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
179465986143633826.36024
23 × 3
-885.007e-126.293e-71.281e-6
179465944455176387359318911212271.9131238541037248840
23 × 3 × 5 × 13 × 281 × 2825397019
2020-05-072812825397019529.4212.10922.616

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
17946593829530399662947007417233825933098.273
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-03-16T12:35:02alpertronManual testing5000001500000012-
skipped known factor: 86143633
--0.101--5.057%


Trial Factoring results:
No TF results for M1794659


ECM factoring results:

Old Calculation Method

Total ECM effort:18.264 GHz-days
Estimated T-Level:24.732
DigitsB1CurvesCompleteFacMiss
2011000265 / 1002.6506.972%
2550000265 / 2800.94638.747%

New Calculation Method

Total ECM effort:18.264 GHz-days
Estimated T-Level:24.732
DigitsB1CompleteFacMiss
20110008.5480.019%
25500000.77346.181%
302500000.04895.354%
3510000000.00299.782%


ECM Summary

B1B2factorcurvesGHz-days
50000500000026418.19
50000500000010.069


Lucas-Lehmer results:
No L-L results for M1794659


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-03T17:11:48Oliver KruseGTX-2
86143633
36BA14D07FF748__no
2017-11-05T22:43:55bayanneiMac1
86143633
36BA14D07FF748__no
2020-05-08T11:41:08mnd9mnd
86143633
4445517638735931891121
C25D424E9C19A204no
2020-05-08T12:59:08Klaus Nordmannno1
86143633
4445517638735931891121
C25D424E9C19A204no


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
109
1010
TF factor-bounds graph:
267
220
230
240
250
260
270
280
290
2100
Last modified: 2021-01-08T11:39:47+00:00