is 2 26532083 - 1
has 7986953 decimal digits
takes 24.561 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LF2DDF002F44DB5CBdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual275288.402166.6667%300000030000004.02682.4276%292.428967.4759%0.8092%
PrimeNet2660.556662.1212%12000045000000.48145.1968%1.038064.0897%1.9685%
GPU722709.006164.2857%19000055000000.64333.7943%9.649465.6408%1.3551%
Difference+5+279.3960+2.3810%+2810000-2500000+3.3834-1.3666%+282.7794+1.8351%-0.5459%

Known prime factors (1 factor, 123.9 bits, 0.00046680% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
265320831918241090215954668223833972461344516938123.851361494627130473447603762202248
23 × 33 × 17 × 31 × 47 × 283 × 13451 × 149713 × 283961 × 417523
2021-12-012839614175236.718e+90.39090.7757

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2004-11-22T00:00:00Team Prime Ribv4_computers405000405000---0.544--1.045%
2021-12-01T18:32:44Luminescence5950X3000000300000038123.8514.02749.128.0542.428%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2004-09-16T00:00:00tscv4_computers21267--1.120--
2016-12-09T00:29:48NRManual testing267268--1.127--
2018-03-20T12:15:47VictordeHollanderManual testing268269--2.253--
2018-05-25T10:20:01VictordeHollanderManual testing269270--4.506--
2021-05-03T07:55:23mikrManual testing270271--9.013--
2021-08-25T16:08:10TheJudgerManual testing271272--18.03--
2021-08-25T16:08:10TheJudgerManual testing272273--36.05--
2021-09-26T10:45:01TheJudgerManual testing273274--72.10--
2021-10-17T20:46:31TheJudgerManual testing274275--144.2--


ECM factoring results:
No ECM results for M26532083


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2004-11-30T00:00:00Team Prime Ribv4_computersF2DDF002F44DB5CB24.56
2011-07-02T12:34:00ANONYMOUSF2DDF002F44DB5CB24.56


PRP results:
No PRP results for M26532083


P-1 factor-bounds graph:
B1 = 3000000 (P-1 stage 1)
B1 = 405000 (P-1 stage 1)
104
105
106
107
104
105
106
107
TF factor-bounds graph:
275
274
273
272
271
270
269
268
267
250
260
270
280
290
2100
2110
2120
2130
Last modified: 2021-12-01T18:32:45+00:00