is 2 33853529 - 1
has 10190928 decimal digits
takes 40.060 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L8773B7455827AB79double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual274113.012364.8649%40000090000001.49033.1951%114.502665.9875%
Target27114.122063.3803%24000070000001.04373.8381%15.165764.7858%
Difference+3+98.8904+1.4846%+160000+2000000+0.4465-0.6430%+99.3369+1.2017%

Known prime factors:
No known factors for M33853529

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2004-08-06ANONYMOUSv4_computers4000009000000---1.490--3.195%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2004-07-26ANONYMOUSv4_computers21268--1.761--
2012-09-05Patrik JohanssonManual testing268270--5.298--
2014-05-05Bill StaffenManual testing270271--7.064--
2019-11-15-Anonymous-Manual testing271272--14.13--
2019-11-15-Anonymous-Manual testing272273--28.25--
2020-03-08-Anonymous-Manual testing273274--56.51--


ECM factoring results:
No ECM results for M33853529


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2004-09-16ANONYMOUSv4_computers8773B7455827AB7940.06
2015-01-23Architects CubedR720_58773B7455827AB7940.06


PRP results:
No PRP results for M33853529


P-1 factor-bounds graph:
B1 = 400000, B2 = 9000000 (P-1 stage 2)
B1 = 400000 (P-1 stage 1)
104
105
106
104
105
106
107
TF factor-bounds graph:
274
273
272
271
270
268
this exponent TF target: 71
TF double-checked to: 67.8
250
260
270
280
Last modified: 2023-04-26T21:34:10+00:00