is 2 1934297 - 1
has 582282 decimal digits
takes 0.105 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
Actual26715.361668.6567 %500000150000000.10155.1025 %15.463170.2560 %
Target2620.317666.1290 %80004500000.00251.1511 %0.320166.5189 %
Difference+5+15.0440+2.5277 %+492000+14550000+0.0990+3.9514%+15.1429+3.7371 %

Known prime factors (2 factors, 104.1 bits, 0.00538333% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
193429727080159824.6917
7
-171.157e-121.044e-71.601e-7
19342978193149993653190463663192479.439211786245691669647
32 × 2161 × 6277 × 1734795739
2019-02-1262771734795739102,3017.435413.886

1 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2016-03-16alpertronManual testing5000001500000012
skipped known factor: 27080159
---8.155%


Trial Factoring results:
5758596061626364656667
No TF results for M1934297


ECM factoring results:
Total ECM effort:39.781 GHz-days
Estimated T-Level:25.695
DigitsB1CompleteFacMiss
201100014.9250.000%
25500001.67418.741%
302500000.13987.028%
3510000000.00999.070%


ECM Summary

B1B2factorcurvesGHz-days
500005000070.293
500005000000171.182
50000500000020.139
500005771019141.033
50000675000070.555
50000750000021618.03
250000400000004318.55


Lucas-Lehmer results:
No L-L results for M1934297


PRP results:
dateuseridcompidcofactorsres64
2017-10-05Oliver KruseGTX-0
27080159
623B9BD32E1199A9
2017-11-11kkmrkkblmbrbkold
27080159
623B9BD32E1199A9
2019-02-13GdSLP_n_L
27080159
819314999365319046366319
0B16CAC4618083F4
2019-02-15arnaudstm-11-010
27080159
819314999365319046366319
0B16CAC4618083F4


CERT results:
No CERT results for M1934297


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
100
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
this exponent TF target: 62
TF double-checked to: 67
ECM T-Level=25.69 ~= 69-bit
250
260
270
280
JSON version of this page
Last modified: 2024-03-13T02:15:48+00:00