factordbrpc · fdb
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Home prime · Base 22 of 7346 length 21 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
1 Fully factored 5 24969 3×7×29×41
2 Fully factored 8 17114765 5×827×4139
3 Fully factored 9 575709555 3×5×257×149341
4 Fully factored 10 8110326317<10> 41×197812837
5 Fully factored 12 102466486245<12> 3×5×229×367×81281
6 Fully factored 13 3922237072…05<13> 34×5×43×225221767
7 Fully factored 18 8888339600…71<18> 454556093×1955388947<10>
8 Fully factored 19 1133825578…31<19> 4637×1055609×231636007
9 Fully factored 20 5961128026…91<20> 17×37×620773×152666934223<12>
10 Fully factored 23 5142410226…99<23> 227×4339×5220970164…83<17>
11 Fully factored 24 6848062247…03<24> 41×1670259084…83<23>
12 Fully factored 25 2732950660…75<25> 54×19×17911199×1284912380…51<14>
13 Fully factored 28 3695148815…51<28> 72×31×2432619365…29<25>
14 Fully factored 31 2499627731…69<31> 1051×7109×11411×1066772699<10>×27483276419<11>
15 Fully factored 33 3590686505…87<33> 3×59×45007×1050798311<10>×4289481427…03<17>
16 Fully factored 36 2497261505…23<36> 307×3649975069…01<14>×2228618591…89<20>
17 Fully factored 38 2455932544…85<38> 5×7×10937×11969×997103×84051313×6395990140…93<14>
18 Fully factored 43 2193004665…45<43> 3×5×7763311×1883221102…33<35>
19 Fully factored 45 6444700838…13<45> 7×9206715483…59<44>
20 Composite 46 1488585056…23<46> 15373×251883173×3844287612…87<33>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (33 digits) of term #20:
384428761223104831452105310983487
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 '7346' --type 39 --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":"7346"},"type":39,"part":"last20","fr":0}}'