is 2 160062671 - 1
has 48183666 decimal digits
takes 1,050.411 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
Actual279764.907864.5570%100000010000000060.84094.2401%825.748866.0598%
Target278382.453464.1026%1000000180000000102.31593.8986%484.769365.5021%
Difference+1+382.4545+0.4544%--80000000-41.4750+0.3416%+340.9795+0.5577%

Known prime factors (9 factors, 427.8 bits, 0.00026726% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
160062671320125343928.2541
1
2007-11-09112.235e-139.516e-61.937e-5
16006267167226321831032.64621
3 × 7
2007-11-09373.591e-123.062e-55.810e-5
160062671345735369371135.009108
22 × 33
2007-11-0927272.927e-110.00030.0005
16006267146597444781531342.08314556
22 × 3 × 1213
2007-11-09412134.212e-90.00070.0012
1600626711159791705292071546.721362293
362293
2007-11-0913622938.307e-80.18780.3508
16006267174200806212311671652.72023178673
7 × 113 × 29303
2014-08-21113293033.856e-60.01620.0284
1600626717081570621695256491859.2972212124344
23 × 276515543
2015-11-1082765155430.0009143.36267.75
16006267157467845417581865131962.31717951670136
23 × 19 × 157 × 709 × 1061
2016-07-2570910610.00930.00690.0137
1600626714922956947987259815432168.7381537821691101
32 × 859 × 1367 × 145513
2017-10-2013671455130.70880.08770.1409

502 Composite Factors:
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2019-12-08Seth_TrManual testing5000050000006-
skipped known factor: 320125343
skipped known factor: 6722632183
skipped known factor: 34573536937
skipped known factor: 4659744478153
skipped known factor: 115979170529207
skipped known factor: 7420080621231167
skipped known factor: 5746784541758186513
skipped known factor: 492295694798725981543
--3.042--1.219%
2019-12-10Seth_TrManual testing500000500000006-
skipped known factor: 320125343
skipped known factor: 6722632183
skipped known factor: 34573536937
skipped known factor: 4659744478153
skipped known factor: 115979170529207
skipped known factor: 7420080621231167
skipped known factor: 5746784541758186513
skipped known factor: 492295694798725981543
--30.42--3.385%
2019-12-28Seth_TrManual testing10000001000000006-
skipped known factor: 320125343
skipped known factor: 6722632183
skipped known factor: 34573536937
skipped known factor: 4659744478153
skipped known factor: 115979170529207
skipped known factor: 7420080621231167
skipped known factor: 5746784541758186513
skipped known factor: 492295694798725981543
--60.84--4.240%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2014-08-21TJAOIManual testing??52.720161.07905e-72,5112.57940e-7
2015-11-10TJAOIManual testing259260*59.297180.0002,5110.001
2022-05-22LordJuliusManual testing260262--0.003--
2016-07-25TJAOIManual testing262263*62.317190.0052,5110.013
2022-11-17LordJuliusManual testing2126346.721158.30714e-82,5111.98577e-7
2022-11-17LordJuliusManual testing2126360.900190.0012,5110.003
2022-11-17LordJuliusManual testing2126328.25492.23464e-132,5115.34175e-13
2022-11-17LordJuliusManual testing2126335.009112.92657e-112,5116.99577e-11
2022-11-17LordJuliusManual testing2126342.083134.21188e-92,5111.00682e-8
2022-11-17LordJuliusManual testing2126362.317190.0092,5110.022
2022-11-17LordJuliusManual testing2126332.646103.59090e-122,5118.58380e-12
2022-11-17LordJuliusManual testing2126359.297180.0012,5110.002
2022-11-17LordJuliusManual testing2126352.720163.85620e-62,5119.21798e-6
2022-05-22LordJuliusManual testing263264--0.012--
2017-10-20BloodERazorManual testing264265--0.023--
2017-10-20BloodERazorManual testing265266--0.047--
2017-10-20BloodERazorManual testing266267--0.093--
2021-08-06Seth_TrManual testing267268--0.187--
2017-10-20BloodERazorManual testing26826968.738210.3362,5100.804
2017-10-20BloodERazorManual testing269270--0.747--
2021-08-06Seth_TrManual testing270271--1.494--
2019-01-31BloodERazorManual testing271272--2.988--
2019-06-24Seth_TrManual testing272273--5.976--
2019-06-24Seth_TrManual testing273274--11.95--
2021-08-06Seth_TrManual testing274275--23.90--
2019-12-08Seth_TrManual testing275276--47.81--
2019-12-13Seth_TrManual testing276277--95.61--
2019-12-28Seth_TrManual testing277278--191.2--
2020-01-07Seth_TrManual testing278279--382.5--


ECM factoring results:
No ECM results for M160062671


Lucas-Lehmer results:
No L-L results for M160062671


PRP results:
No PRP results for M160062671


P-1 factor-bounds graph:
B1 = 1000000, B2 = 100000000 (P-1 stage 2)
B1 = 500000, B2 = 50000000 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 500000 (P-1 stage 1)
B1 = 50000, B2 = 5000000 (P-1 stage 2)
B1 = 50000 (P-1 stage 1)
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
279
278
277
276
275
274
273
272
271
270
269
268
267
266
265
264
263
262
260
2
this exponent TF target: 78
TF double-checked to: 67.9
250
260
270
280
JSON version of this page
Last modified: 2023-10-02T12:12:48+00:00