is 2 160369357 - 1
has 48275987 decimal digits
takes 1,052.424 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 PRP tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP8E9CFD1E8676FBC9PRP-tested

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual279763.445064.5570 %5000000150000000122.75165.4309 %886.196666.4818 %
Target278381.722064.1026 %1000000180000000102.31593.8995 %484.037965.5024 %
Difference+1+381.7231+0.4544 %+4000000-30000000+20.4356+1.5314%+402.1587+0.9794 %

Known prime factors (1 factor, 88.3 bits, 0.00005504% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1603693573717735709880656087117622092788.2651159116610376088272
24 × 6323 × 301247 × 38033057
2021-01-1130124738033057390,88422.42836.827

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-01-11Roland ClarksonManual testing500000015000000022788.265127.35.891%


Trial Factoring results:
5758596061626364656667686970717273747576777879
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-06-29kiwiboybis2632640.012
2011-02-02runeskts012642650.023
2013-02-22Chih-Wei Huangnew_dell2652660.047
2015-05-11Richardsvn_022662670.093
2016-03-04XZTManual testing2672680.186
2017-03-29La GüiraManual testing2682690.373
2017-03-29La GüiraManual testing2692700.746
2017-12-06Oliver KruseManual testing27027693.94
2021-01-10Roland ClarksonManual testing27627795.43
2021-01-10Roland ClarksonManual testing277278190.9
2021-01-10Roland ClarksonManual testing278279381.7


ECM factoring results:
No ECM results for M160369357


Lucas-Lehmer results:
No L-L results for M160369357


PRP results:
dateuseridcompidcofactorsres64
2021-01-17Roland ClarksonManual testing8E9CFD1E8676FBC9


CERT results:
dateuseridcompid
2021-01-17Dobri2p_1


P-1 factor-bounds graph:
B1 = 5000000, B2 = 150000000 (P-1 stage 2)
B1 = 5000000 (P-1 stage 1)
104
105
106
107
104
105
106
107
108
109
TF factor-bounds graph:
279
278
277
276
270
269
268
267
266
265
264
this exponent TF target: 78
TF double-checked to: 67
250
260
270
280
290
JSON version of this page
Last modified: 2024-03-13T02:15:48+00:00