is 2 161573717 - 1
has 48638536 decimal digits
takes 1,060.328 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
Actual2680.368958.8235%----0.368958.8235%0.0000%
PrimeNet27423.678862.1622%6500003600000024.51195.3578%48.190764.1894%2.0273%
GPU72278378.876664.1026%10000003600000027.66093.9029%406.537665.5036%1.4010%
Difference-10-378.5077-5.2790%-1000000-36000000-27.6609-3.9029%-406.1687-6.6801%-6.6801%

Known prime factors (3 factors, 160.5 bits, 0.00009936% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
16157371738777692091031.85312
22 × 3
2007-11-11441.775e-123.806e-57.746e-5
16157371727195980346863196491961.2388415966672
24 × 32 × 53 × 1102721
2016-04-125311027210.00340.57221.0678
1615737172006615687995053181032167.443620959808703
3 × 13 × 751 × 21201127
2022-08-04751212011270.184010.99820.529

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
161573717105459735197635243084238876412993.091
1615737177781192529203568169715636905273099.296
16157371754571880814420838075172925079608430584739128.681
161573717211617159099378969055880396224169445898163526502349160.534
P-1 results:
No P-1 results for M161573717


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2016-04-12T11:46:52TJAOIManual testing261262*61.238190.0022,1810.003
2022-08-04T11:12:00TJAOIManual testing267268*67.443210.0002,1810.000
2022-08-10T19:29:34LordJuliusManual testing2126867.443210.1842,1810.378
2022-08-10T19:29:34LordJuliusManual testing2126861.238190.0032,1810.007
2022-08-10T19:29:34LordJuliusManual testing2126831.853101.77521e-122,1813.65153e-12


ECM factoring results:
No ECM results for M161573717


Lucas-Lehmer results:
No L-L results for M161573717


PRP results:
No PRP results for M161573717


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
107
108
TF factor-bounds graph:
268
262
230
240
250
260
270
280
290
2100
Last modified: 2022-08-10T19:29:34+00:00