is 2 159025619 - 1
has 47871482 decimal digits
takes 1,043.606 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual27424.058262.1622 %6790002716900020.19455.1219 %44.252764.1002 %
Target278384.947564.1026 %1000000180000000102.31593.8956 %487.263465.5010 %
Difference-4-360.8893-1.9404 %-321000-152831000-82.1214+1.2263%-443.0107-1.4008 %

Known prime factors (1 factor, 80.9 bits, 0.00005089% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
15902561922975754832730368685196632580.9267223916176905549
11 × 53 × 595961 × 20791523
2020-12-26595961207915231,539.816.14120.132

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2019-12-28MadPooManual testing1000001000000--1.4181.137%
2020-12-26One ManRyzen26006790002716900022580.92620.193.508%


Trial Factoring results:
57585960616263646566676869707172737475767778
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-06-30Grant McCrackenWork-32632640.012
2011-01-31dsls22642650.023
2013-02-22Richardwdmd-solr-web2652660.047
2015-04-28Mr-PlonkLinux-i72662670.094
2016-05-17kompakki012672680.188
2017-03-14rubikvn2100com_cc196-302682690.376
2018-02-19YxinityManual testing2692700.752
2018-05-14proxy2222Manual testing2702711.504
2018-05-26ZenghuiManual testing2712723.007
2018-11-18nranksManual testing2722736.015
2020-01-14S00030Manual testing27327412.03


ECM factoring results:
No ECM results for M159025619


Lucas-Lehmer results:
No L-L results for M159025619


PRP results:
No PRP results for M159025619


CERT results:
No CERT results for M159025619


P-1 factor-bounds graph:
B1 = 679000, B2 = 27169000 (P-1 stage 2)
B1 = 679000 (P-1 stage 1)
B1 = 100000, B2 = 1000000 (P-1 stage 2)
B1 = 100000 (P-1 stage 1)
104
105
106
104
105
106
107
108
TF factor-bounds graph:
274
273
272
271
270
269
268
267
266
265
264
this exponent TF target: 78
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00