is 2 100787 - 1
has 30340 decimal digits
takes 0.000 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
Actual267294.819074.6269%100000000065551647961801,153.842325.4531%1,448.661281.0851%
Target2440.000061.3636%1200180000.00004.1545%0.000062.9688%
Difference+23+294.8189+13.2632%+999998800+6555164778180+1,153.8423+21.2986%+1,448.6612+18.1163%

Known prime factors (2 factors, 70.5 bits, 0.06992815% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
100787358110321191135.060177657
3 × 59219
-3592196.603e-81.041e-51.942e-5
100787459324658071135.419227869
227869
2008-07-2612278696.005e-84.001e-57.471e-5

1 Composite Factors:
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-10-31kkmrkkblmbrbkManual testing100000000200000000012-
skipped known factor: 35811032119
skipped known factor: 45932465807
--0.656--11.730%
2021-12-18Seth_TrManual testing10000000006555164796180-
skipped known factor: 35811032119
skipped known factor: 45932465807
--1,154--25.453%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-07-26J FeitsmaManual testing??35.419111.46373e-80.0003.12338e-8
2018-10-25J.R. AllenManual testing252257--0.185--
2022-04-13LordJuliusManual testing2125735.060116.60302e-80.0001.40898e-7
2022-04-13LordJuliusManual testing2125735.419116.00533e-80.0001.28145e-7
2018-11-01J.R. AllenManual testing257258--0.190--
2022-04-13LordJuliusManual testing257258--0.190--
2018-11-01J.R. AllenManual testing258259--0.381--
2022-04-13LordJuliusManual testing258259--0.381--
2018-11-01J.R. AllenManual testing259260--0.762--
2022-04-13LordJuliusManual testing259260--0.762--
2022-04-13LordJuliusManual testing260261--1.524--
2022-04-13LordJuliusManual testing261262--3.048--
2022-10-25LordJuliusManual testing262263--9.74--
2022-10-25LordJuliusManual testing263264--19.48--
2022-10-25LordJuliusManual testing264265--37.07--
2022-10-25LordJuliusManual testing265266--74.14--
2022-10-25LordJuliusManual testing266267--148.3--


ECM factoring results:
Total ECM effort:12.736 GHz-days
Estimated T-Level:30.766
DigitsB1CompleteFacMiss
201100082.9900.000%
255000013.0390.000%
302500001.56121.003%
3510000000.15385.797%
4030000000.01398.726%


ECM Summary

B1B2factorcurvesGHz-days
5000050000002810.652
250000250000005856.791
10000001000000001145.293


Lucas-Lehmer results:
No L-L results for M100787


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-21Oliver KruseOliver-PC
35811032119
45932465807
9EA76F5E053706__no
2017-09-21Oliver KruseManual testing
35811032119
45932465807
9EA76F5E053706__no
2017-10-13kkmrkkblmbrbkManual testing
35811032119
45932465807
9EA76F5E053706__no
2020-04-17Oliver KruseAddPrpType5
35811032119
45932465807
A84EC8DB3D496E__no
2022-04-15LordJuliusWhiteBox
35811032119
45932465807
A84EC8DB3D496E8Cno


P-1 factor-bounds graph:
B1 = 1000000000, B2 = 6555164796180 (P-1 stage 2)
B1 = 1000000000 (P-1 stage 1)
B1 = 100000000, B2 = 2000000000 (P-1 stage 2)
B1 = 100000000 (P-1 stage 1)
100
101
102
103
104
105
106
107
108
109
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
1013
TF factor-bounds graph:
267
266
265
264
263
262
261
260
259
258
257
2
this exponent TF target: 44
TF double-checked to: 67.7
ECM T-Level=30.77 ~= 86-bit
250
260
270
280
290
Last modified: 2023-03-23T17:39:31+00:00