is 2 1762933 - 1
has 530696 decimal digits
takes 0.096 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
Actual26716.854868.6567%500000150000000.10155.0458%16.956370.2382%1.5815%
PrimeNet2570.010963.1579%80001400000.00122.8064%0.012164.1918%1.0339%
GPU722610.174265.5738%80001200000.00111.4531%0.175466.0740%0.5003%
Difference+6+16.6806+3.0829%+492000+14880000+0.1004+3.5927%+16.7809+4.1642%+4.1642%

Known prime factors (3 factors, 155.9 bits, 0.00884501% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
176293338784527825.20911
11
-1112.542e-121.215e-71.601e-7
1762933276549645373672811754.6187843453080
23 × 3 × 5 × 19 × 139 × 24749
2015-07-21139247490.00150.00010.0002
1762933812202400800138459750232376.10423035543630987067
246641 × 93397057387
2020-06-212466419339705738713,504400.29747.60

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
176293310725847187835638188610872579.827
1762933315008859432977916959212086912131101.313
1762933224614285912923960390506881812290342246340130.723
17629338711558836575518990712544701334583710690863000147155.932
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-03-16T12:30:28alpertronManual testing5000001500000012-
skipped known factor: 38784527
skipped known factor: 27654964537367281
--0.101--5.046%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2014-12-04T12:09:00TJAOIManual testing254255*54.618170.0000.2020.000


ECM factoring results:

Old Calculation Method

Total ECM effort:27.308 GHz-days
DigitsB1CurvesCompleteFacMiss
2011000397 / 1003.9701.850%
2550000397 / 2801.41824.162%

New Calculation Method

Total ECM effort:27.308 GHz-days
DigitsB1CompleteFacMiss
201100012.8060.000%
25500001.15731.429%
302500000.07193.121%
3510000000.00399.674%


ECM Summary

B1B2factorcurvesGHz-days
50000500000025117.26
50000500000014610.04


Lucas-Lehmer results:
No L-L results for M1762933


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-03T09:49:20Oliver KruseGTX-3
38784527
27654964537367281
7EE8084F4D13E4__no
2017-11-04T04:20:19ATHec2-1xf
38784527
27654964537367281
7EE8084F4D13E4__no
2020-06-21T23:50:13CrypticClueManual testing
38784527
27654964537367281
81220240080013845975023
A6A674795B3EBE56no
2020-06-23T11:42:56Luigi Morelli9800X
38784527
27654964537367281
81220240080013845975023
A6A674795B3EBE56no


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
1011
TF factor-bounds graph:
267
255
220
230
240
250
260
270
280
290
2100
Last modified: 2020-10-02T07:43:10+00:00