is 2 75565537 - 1
has 22747494 decimal digits
takes 208.916 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-daysProbabilityProb over default TF
Actual275101.261964.0000%6250006250002.50551.5098%103.767464.5435%0.5435%
PrimeNet2703.162261.4286%320000140000004.27075.5625%7.432963.5741%2.1455%
GPU7227450.629863.5135%500000180000005.82664.1868%56.456465.0411%1.5276%
Difference+1+50.6321+0.4865%+125000-17375000-3.3211-2.6771%+47.3110-0.4976%-0.4976%

Known prime factors (1 factor, 106.9 bits, 0.00014143% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
7556553714889345928880985194273014814625733106.876985194211541233750133544
23 × 35 × 17 × 67 × 373 × 14683 × 277691 × 292561
2016-03-252776912925612.365e+91.11652.2656

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-03-25T19:20:11Jwb52zClay62500062500033106.8762.506417.85.0111.510%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2004-01-27T00:00:00Marzbugv4_computers21263--0.021--
2004-09-02T00:00:00Marzbugv4_computers21265--0.097--
2010-07-29T14:50:00Ton van der Woudenleiden265266--0.099--
2010-08-09T02:06:00Net_ForceButterfly266267--0.198--
2010-11-21T00:28:00arnaudSRV-240267268--0.396--
2010-11-27T05:41:00arnaudSRV-240268269--0.791--
2013-05-20T00:14:00PascalBieriPascal2269270--1.582--
2013-11-04T23:28:00Mark Filipski2270271--3.165--
2015-09-06T11:45:00Judge HaleManual testing271272--6.329--
2016-02-13T22:50:03Judge HaleManual testing272273--12.66--
2016-03-24T01:20:001997rj7Manual testing273274--25.32--
2016-03-24T01:20:001997rj7Manual testing274275--50.63--


ECM factoring results:
No ECM results for M75565537


Lucas-Lehmer results:
No L-L results for M75565537


PRP results:
No PRP results for M75565537


P-1 factor-bounds graph:
B1 = 625000 (P-1 stage 1)
104
105
106
104
105
106
TF factor-bounds graph:
275
274
273
272
271
270
269
268
267
266
265
263
250
260
270
280
290
2100
2110
Last modified: 2016-03-25T19:20:11+00:00