is 2 117780521 - 1
has 35455470 decimal digits
takes 543.917 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual277259.874664.9351%75400012480510050.30604.8851%310.180666.6480%
Target276129.936564.4737%80000014000000056.14084.2085%186.077365.9688%
Difference+1+129.9380+0.4614%-46000-15194900-5.8347+0.6766%+124.1033+0.6792%

Known prime factors:
No known factors for M117780521

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2023-04-23Mark Roseleonardo754000124805100---50.31--4.885%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-05-12carlos56celeron1263264--0.017--
2010-10-12Donna NobleATH2-630-temp264265--0.032--
2012-07-15Richard172.26.176.51265266--0.063--
2015-01-22ANONYMOUSxx02266267--0.127--
2015-03-22chorian11Manual testing267268--0.254--
2015-03-22chorian11Manual testing268269--0.508--
2015-03-22chorian11Manual testing269270--1.015--
2015-03-22chorian11Manual testing270271--2.030--
2015-09-19sourcebinary.comManual testing271272--4.061--
2019-12-05Niels_Mache_NextcloudManual testing272273--8.121--
2019-12-05Niels_Mache_NextcloudManual testing273274--16.24--
2021-02-24hktManual testing274275--32.48--
2021-07-02TheJudgerManual testing275276--64.97--
2022-05-08TheJudgerManual testing276277--129.9--


ECM factoring results:
No ECM results for M117780521


Lucas-Lehmer results:
No L-L results for M117780521


PRP results:
No PRP results for M117780521


P-1 factor-bounds graph:
B1 = 754000, B2 = 124805100 (P-1 stage 2)
B1 = 754000 (P-1 stage 1)
104
105
106
104
105
106
107
108
109
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
250
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270
280
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Last modified: 2023-10-02T12:12:48+00:00