is 2 117744587 - 1
has 35444653 decimal digits
takes 543.751 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
Actual277259.953964.9351%46000095450006.39472.8570%266.348665.9369%
Target276129.976264.4737%80000014000000056.14084.2083%186.117065.9688%
Difference+1+129.9777+0.4614%-340000-130455000-49.7461-1.3513%+80.2316-0.0319%

Known prime factors (1 factor, 127.3 bits, 0.00010815% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
11774458721615746026162116926616696059074228908139127.345917908269794267354584066614420
22 × 32 × 5 × 23 × 563 × 1481 × 18433 × 55987 × 252341 × 1021091		2023-04-2725234110210911.232e+91.97023.4389

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2023-04-27Sebastian HornbostelManual testing4600009545000639127.3456.3951,08812.792.857%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-05-12sasaki3mate1800263264--0.017--
2010-10-12Donna NobleATH2-630-temp264265--0.032--
2012-07-18Richard172.26.180.86265266--0.063--
2014-12-11Mr-PlonkLinux-i7266267--0.127--
2015-03-22SMoffatManual testing267268--0.254--
2015-04-19SMoffatManual testing268269--0.508--
2015-04-26William WallaceManual testing269270--1.015--
2015-06-27Ryan PropperManual testing270271--2.031--
2015-06-27Ryan PropperManual testing271272--4.062--
2019-12-08Niels_Mache_NextcloudManual testing272273--8.124--
2019-12-08Niels_Mache_NextcloudManual testing273274--16.25--
2021-02-23jwnutterManual testing274275--32.49--
2021-02-23jwnutterManual testing275276--64.99--
2022-05-08TheJudgerManual testing276277--130.0--


ECM factoring results:
No ECM results for M117744587


Lucas-Lehmer results:
No L-L results for M117744587


PRP results:
No PRP results for M117744587


P-1 factor-bounds graph:
B1 = 460000, B2 = 9545000 (P-1 stage 2)
B1 = 460000 (P-1 stage 1)
104
105
106
104
105
106
107
TF factor-bounds graph:
277
276
275
274
273
272
271
270
269
268
267
266
265
264
this exponent TF target: 76
TF double-checked to: 67.9
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Last modified: 2023-09-25T11:53:03+00:00