is 2 2244859 - 1
has 675770 decimal digits
takes 0.148 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
Actual26713.236467.1642 %500000150000000.12305.1946 %13.359468.8699 %
Target2620.273764.5161 %110009500000.00591.6592 %0.279665.1049 %
Difference+5+12.9628+2.6481 %+489000+14050000+0.1171+3.5354%+13.0798+3.7650 %

Known prime factors (4 factors, 165.3 bits, 0.00736306% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
2244859130201823926.95629
29
-1294.007e-122.408e-72.408e-7
2244859143670977927.09832
25
2008-07-1432328.020e-123.051e-66.209e-6
2244859383601505931135.1598544
25 × 3 × 89
2008-07-1432893.771e-93.347e-66.209e-6
2244859797004442829067609133432376.07717751770664194669
17 × 7425703 × 140622619
2018-01-23742570314062261910,4901.39981.4408

11 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2016-04-28alpertronManual testing5000001500000012
skipped known factor: 130201823
skipped known factor: 143670977
skipped known factor: 38360150593
---8.289%


Trial Factoring results:
5758596061626364656667
No TF results for M2244859


ECM factoring results:
Total ECM effort:9.041 GHz-days
Estimated T-Level:21.578
DigitsB1CompleteFacMiss
20110003.3173.627%
25500000.31672.933%
302500000.02097.987%


ECM Summary

B1B2factorcurvesGHz-days
10.062
10.062
50000500000030.258
50000500000020.172
50000555855570.629
50000574615370.638
50000712129970.706
5000010776780506.515


Lucas-Lehmer results:
No L-L results for M2244859


PRP results:
dateuseridcompidcofactorsres64
2017-10-10Chang Chia-Tchehomura
130201823
143670977
38360150593
A787733EA6238D75
2017-10-28Oliver KruseGTX-1
130201823
143670977
38360150593
A787733EA6238D75
2018-01-25Squeeky_Squirreli5-5250U_1600
130201823
143670977
38360150593
79700444282906760913343
296D1AC287344EB4
2018-01-28Oliver KruseGTX-6
130201823
143670977
38360150593
79700444282906760913343
296D1AC287344EB4


CERT results:
No CERT results for M2244859


P-1 factor-bounds graph:
B1 = 500000, B2 = 15000000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
100
101
102
103
104
105
106
107
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
this exponent TF target: 62
TF double-checked to: 67
ECM T-Level=21.58 ~= 55-bit
250
260
270
280
JSON version of this page
Last modified: 2024-03-13T02:15:48+00:00