is 2 117827839 - 1
has 35469714 decimal digits
takes 544.136 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
Actual277259.770264.9351%7800007800005.22301.4115%264.993365.4300%
Target276129.884464.4737%80000014000000056.14084.2087%186.025165.9689%
Difference+1+129.8859+0.4614%-20000-139220000-50.9178-2.7971%+78.9681-0.5389%

Known prime factors (1 factor, 128.2 bits, 0.00010884% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
11782783940403649715625084693155388121767282412139128.2481714520526665395462830960861540
22 × 3 × 5 × 251 × 337 × 2593 × 26813 × 41521 × 207671 × 563503		2023-04-302076715635031.196e+91.52042.8301

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2023-04-30gcardonaRyzen-7950X78000078000039128.2485.2231,08810.451.412%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-05-16Carsten Kossendeyleela263264--0.017--
2010-10-13OS1L8264265--0.032--
2012-07-09Mr-PlonkLinux-i7265266--0.063--
2014-12-25ANONYMOUS266267--0.127--
2015-03-22junkcalcManual testing267268--0.254--
2015-03-22junkcalcManual testing268269--0.507--
2015-04-05SMoffatManual testing269270--1.015--
2015-04-22Josh FamestadManual testing270271--2.029--
2015-06-22endless_mikeManual testing271272--4.059--
2019-11-29Niels_Mache_NextcloudManual testing272273--8.118--
2019-11-29Niels_Mache_NextcloudManual testing273274--16.24--
2021-06-07cacheflushManual testing274275--32.47--
2021-07-02TheJudgerManual testing275276--64.94--
2022-05-08TheJudgerManual testing276277--129.9--


ECM factoring results:
No ECM results for M117827839


Lucas-Lehmer results:
No L-L results for M117827839


PRP results:
No PRP results for M117827839


P-1 factor-bounds graph:
B1 = 780000 (P-1 stage 1)
104
105
106
104
105
106
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
260
270
280
290
2100
2110
2120
2130
Last modified: 2023-09-25T11:53:03+00:00