is 2 583139 - 1
has 175543 decimal digits
takes 0.009 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
Actualunknown175000053997843906.256045.7465%6.256045.7465%
Target2440.000054.5455%100003400000.000615.2381%0.000661.4719%
Difference-440.0000-54.5455%+1740000+5399444390+6.2554+30.5083%+6.2554-15.7254%

Known prime factors (2 factors, 126.0 bits, 0.02161308% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
583139634455233929.241544
25 × 17
-32321.371e-106.767e-71.377e-6
5831391373128094139307942968894005293096.793117735916663034708960376
23 × 33 × 7 × 13 × 61 × 937 × 37879 × 2766596957
2022-12-263787927665969575.454e+103.18815.9531

1 Composite Factors:
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2022-12-26USAFSSUSAFSACS175000053997843903096.7936.2560.01712.5145.746%


Trial Factoring results:
No TF results for M583139


ECM factoring results:
Total ECM effort:17.368 GHz-days
Estimated T-Level:26.502
DigitsB1CompleteFacMiss
201100024.8080.000%
25500003.1354.351%
302500000.30074.050%
3510000000.02397.711%
4030000000.00199.851%


ECM Summary

B1B2factorcurvesGHz-days
5000050000002814.559
25000025000000443.569
250000350000001009.239


Lucas-Lehmer results:
No L-L results for M583139


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-27Oliver KruseGTX-2
634455233
43A7D3EE709344__no
2017-09-28Oliver KruseManual testing
634455233
43A7D3EE709344__no
2017-11-08kkmrkkblmbrbkc4.xlarge
634455233
43A7D3EE709344__no
2020-04-19Oliver KruseAddPrpType5
634455233
26EE8D3E9DBC54__no
2022-12-26LordJuliusWhiteBox
634455233
137312809413930794296889400529
26EE8D3E9DBC5495no


P-1 factor-bounds graph:
B1 = 1750000, B2 = 5399784390 (P-1 stage 2)
B1 = 1750000 (P-1 stage 1)
100
101
102
103
104
105
106
107
100
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
this exponent TF target: 44
TF double-checked to: 67.7
ECM T-Level=26.5 ~= 71-bit
250
260
270
280
290
2100
Last modified: 2023-03-25T13:08:14+00:00