is 2 66626017 - 1
has 20056430 decimal digits
takes 168.416 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
Actual2680.894661.7647%----0.894661.7647%0.0000%
PrimeNet2703.586462.8571%280000130000003.56645.3152%7.152864.8314%1.9742%
GPU7227457.423064.8649%450000150000004.55493.9256%61.977966.2441%1.3793%
Difference-6-56.5284-3.1002%-450000-15000000-4.5549-3.9256%-61.0833-4.4794%-4.4794%

Known prime factors (4 factors, 215.6 bits, 0.00032362% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
6662601742640650891031.99032
25
-32324.324e-120.00010.0002
666260171245485574724594011856.789934684100
22 × 52 × 7 × 19 × 31 × 2267
2015-08-073122670.00020.00060.0008
666260177571607697306912331859.3935682170448
24 × 32 × 29 × 1360673
2015-11-172913606730.00120.27180.5075
666260172002434429044483272492167.4401502742111272
23 × 372 × 137211661
2022-08-0313691372116610.559827.40551.176

11 Composite Factors:
exponentprime factorscomposite factordigitsbits*
666260175310831558036242107739516892788.779
6662601732285828049690084184736647372891.383
666260178538510741900228750269083101613099.430
666260179430328164469459541036209225913143335116.183
666260172494003195706782512874008662051451784938124.230
6662601715161647936305581717663294390335930801739126.834
6662601740211533103927672635630462645115948491784253745148.172
6662601710634591958667725993661753391337194677758827356148156.219
6662601764650253656909526638124708266560981513848751851348158.823
6662601718883613793721512161403660194662861139483622022486
317817
56183.623
6662601780520958331966747395730280672880850309726872153355
480783628390713
65215.613
P-1 results:
No P-1 results for M66626017


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2015-04-30T11:36:00TJAOIManual testing256257*56.789188.29544e-5346.70.000
2015-11-17T12:56:53TJAOIManual testing259260*59.393182.69446e-5346.75.54704e-5
2022-03-30T15:48:12LordJuliusManual testing2126056.789180.000346.70.000
2022-03-30T15:48:12LordJuliusManual testing2126031.990104.32362e-12346.78.90103e-12
2022-03-30T15:48:12LordJuliusManual testing2126059.393180.001346.70.002
2022-08-10T19:29:27LordJuliusManual testing2126756.789180.000346.70.000
2022-08-10T19:29:27LordJuliusManual testing2126731.990104.32362e-12346.78.90103e-12
2022-08-10T19:29:27LordJuliusManual testing2126759.393180.001346.70.002
2022-08-03T11:19:31TJAOIManual testing267268*67.440210.114345.80.234
2022-08-10T19:29:27LordJuliusManual testing26726867.440210.114345.80.234


ECM factoring results:
No ECM results for M66626017


Lucas-Lehmer results:
No L-L results for M66626017


PRP results:
No PRP results for M66626017


P-1 factor-bounds graph:
100
101
102
103
104
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
268
267
260
257
230
240
250
260
270
280
290
2100
Last modified: 2022-08-10T19:29:27+00:00