is 2 18005129 - 1
has 5420084 decimal digits
takes 10.953 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L454A8AB4A62B1289double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual273106.238965.7534%100000041936466020.98806.9750%127.226868.1421%2.3887%
PrimeNet2650.405261.5385%8000024000000.18214.5667%0.587363.2949%1.7564%
GPU722696.630763.7681%13000036000000.28143.4537%6.912165.0195%1.2513%
Difference+4+99.6081+1.9853%+870000+415764660+20.7066+3.5213%+120.3147+3.1227%+1.1374%

Known prime factors (2 factors, 211.2 bits, 0.00117311% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
18005129321826342589028677025132374.769893707405787064
23 × 3 × 11 × 739 × 1801 × 2543509		2022-02-2218012543509376.410.12370.2283
1800512911904101141687686424098866022935927359992942136.4513305752805683226825006048560645116
22 × 3 × 72 × 23 × 31 × 12511 × 21059 × 336199 × 757811 × 117467149		2022-02-227578111174671497.714e+96.277310.544

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
1800512938310533322392287749724362417779851331720376047529
00470949921577		64211.219
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2003-05-04T00:00:00ANONYMOUSv4_computers2100004620000---0.397--2.544%
2022-02-22T21:29:19Sid & AndyMagic_8_Ball100000041936466064211.21920.9921.9141.986.975%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-08-24T00:00:00ANONYMOUSv4_computers21261--0.017--
2001-08-26T00:00:00ANONYMOUSv4_computers21261--0.017--
2002-01-28T00:00:00ANONYMOUSv4_computers21266--0.820--
2016-03-21T13:00:19Mark RoseManual testing266267--0.830--
2015-10-29T15:52:06mikrManual testing267268--1.660--
2017-09-05T09:40:41ramgeisManual testing268269--3.320--
2020-03-04T09:59:33lycornManual testing269270--6.641--
2021-09-11T15:58:57SRBaseManual testing270271--13.28--
2021-10-08T19:14:44-Anonymous-Manual testing271272--26.56--
2021-12-08T11:55:01PraxeisGPU72_TF272273--53.12--


ECM factoring results:
Total ECM effort:2.775 GHz-days
Estimated T-Level:0.577
DigitsB1CompleteFacMiss
20110000.11589.102%
25500000.01198.938%


ECM Summary

B1B2factorcurvesGHz-days
50000500000032.775


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2003-10-31T00:00:00ANONYMOUSv4_computers454A8AB4A62B128910.95
2006-10-24T00:00:00ebravickv4_computers454A8AB4A62B128910.95


PRP results:
No PRP results for M18005129


P-1 factor-bounds graph:
B1 = 1000000, B2 = 419364660 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 210000, B2 = 4620000 (P-1 stage 2)
B1 = 210000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-02-22T21:29:22+00:00