factordbrpc · fdb
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Distinct-prime home prime · Base 16 of 3403 length 27 Not fully computed yet - the last known term is composite. ↓ .elf file
Show sequence-development graph
Term size (digits) across the sequence
How the sequence develops - decimal digits of each term vs iteration.
nStatus DigitsTermFactorization
7 Fully factored 6 685353 3×228451
8 Fully factored 7 3374179 29×116351
9 Fully factored 8 30525055 5×11×43×12907
10 Fully factored 10 1529557611<10> 3×509852537
11 Fully factored 11 13394754425<11> 52×13×19×47×46153
12 Fully factored 12 399753851977<12> 53×103×307×238529
13 Fully factored 14 5871682005…77<14> 3×7×43×191×340440649
14 Fully factored 17 1552922339…33<17> 37×1543×126233×2154811
15 Fully factored 19 2693277840…59<19> 462131×5827953200…89<13>
16 Fully factored 19 8129900356…85<19> 32×5×151699243×1190938391<10>
17 Fully factored 20 6175638303…47<20> 32933×1875212796…59<16>
18 Fully factored 21 1483189217…27<21> 3×907×5450897528…87<17>
19 Fully factored 21 9508544623…07<21> 17×1777×14293×2202187565…11<13>
20 Fully factored 23 8232922316…83<23> 17×1531×12269×2578224547…41<15>
21 Fully factored 25 1312729102…13<25> 31×953×394545433×112622068127<12>
22 Fully factored 27 6041280555…19<27> 3×11×17×1076877104…79<25>
23 Fully factored 29 1828124419…75<29> 3×52×7×919×30323×248065429×5037238627<10>
24 Fully factored 31 4234866496…63<31> 7×6049809280…09<30>
25 Fully factored 31 9478535129…41<31> 3×37×8539220837…31<29>
26 Composite 34 1020544125…11<34> 1020544125…11<34>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (34 digits) of term #26:
1020544125392100144568464203827211
Check for factors - let the server run a small P-1 / P+1 / ECM step on the composite:
level 0 done · takes up to a minute
From the command linefdb · curl
fdb
fdb seq view '3403' --type 129 --part last20
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"sequence_view","params":{"start":{"expr":"3403"},"type":129,"part":"last20","fr":0}}'