is 2 198042727 - 1
has 59616802 decimal digits
takes 1,620.100 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
Actual27677.276263.1579 %----77.276263.1579 %
Target278309.107664.1026 %1300000250000000176.14624.3784 %485.253865.6743 %
Difference-2-231.8314-0.9447 %-1300000-250000000-176.1462-4.3784 %-407.9775-2.5164 %

Known prime factors (1 factor, 75.4 bits, 0.00003806% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
198042727488314934497663815648792375.370123285248061057
32 × 53 × 258459639541
2019-05-135325845963954174.742167,033311,971

P-1 results:
No P-1 results for M198042727


Trial Factoring results:
57585960616263646566676869707172737475767778
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-08-091997rj7Manual testing2632640.010
2011-04-25tscc012642650.019
2013-07-04Lukin DmitryDmitry2652660.038
2015-09-19TraitorAwesome-o2662670.075
2016-08-13XZTManual testing2672680.151
2017-09-07Dave Bellmars2682690.302
2018-12-23Chabot PrimeCC3906-182692700.604
2019-02-10Niels_Mache_NextcloudManual testing2702711.207
2019-05-13jiafeimao615Manual testing271276
75.370
23
50.53


ECM factoring results:
No ECM results for M198042727


Lucas-Lehmer results:
No L-L results for M198042727


PRP results:
No PRP results for M198042727


CERT results:
No CERT results for M198042727


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
TF factor-bounds graph:
276
271
270
269
268
267
266
265
264
this exponent TF target: 78
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00