is 2 103767749 - 1
has 31237206 decimal digits
takes 413.161 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
Actual276147.483164.4737 %8700001805250010.42753.8504 %157.910665.8416 %
Target276147.483164.4737 %65000011000000038.14833.8578 %185.631465.8442 %
Difference---+220000-91947500-27.7208-0.0074 %-27.7208-0.0026 %

Known prime factors (1 factor, 107.7 bits, 0.00010375% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
10376774925684033821643964126763968132300933107.6631237573045052946273642496
211 × 401 × 1319 × 14087 × 47269 × 1715761
2021-05-074726917157611.617e+90.79771.0080

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-05-07Ben Deloi-0f8e9e982a14ff7f58700001805250012233107.66310.433.850%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-04-20Richard2632640.019
2010-08-29Richard2642650.036
2012-05-01omiXorpSCS-DEV-z800-012652660.072
2013-08-31Chang Chia-Tcheex012662670.144
2013-09-03Fabrice Belletlinux132672680.288
2014-07-05arnaudsrv-6202682690.576
2014-07-07PhilManual testing2692701.152
2014-07-15ANONYMOUSusa2702712.304
2014-12-26SMoffatManual testing2712724.609
2019-09-11Niels_Mache_NextcloudManual testing27227427.65
2021-01-19RichD0Manual testing27427536.87
2021-01-221997rj7Manual testing27527673.74


ECM factoring results:
No ECM results for M103767749


Lucas-Lehmer results:
No L-L results for M103767749


PRP results:
No PRP results for M103767749


CERT results:
No CERT results for M103767749


P-1 factor-bounds graph:
B1 = 870000, B2 = 18052500 (P-1 stage 2)
B1 = 870000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
TF factor-bounds graph:
276
275
274
272
271
270
269
268
267
266
265
264
this exponent TF target: 76
TF double-checked to: 67
250
260
270
280
290
2100
2110
JSON version of this page
Last modified: 2024-03-13T02:15:48+00:00