factordbrpc · fdb
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Home prime · Base 27 of 110 length 22 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
2 Fully factored 5 41225 52×17×97
3 Fully factored 7 2768110 2×5×17×19×857
4 Fully factored 9 855994844 22×213998711
5 Fully factored 11 21909546095<11> 5×19×230626801
6 Fully factored 11 59893382107<11> 13×4607183239<10>
7 Fully factored 12 140591774878<12> 2×17909×3925171
8 Fully factored 12 821837573596<12> 22×13×431×36669533
9 Fully factored 15 4308720580…17<15> 9311×12203×3792149
10 Fully factored 16 2629876517…61<16> 11×2390796834…51<15>
11 Fully factored 17 6138874591…04<17> 23×13×5902764030…01<15>
12 Fully factored 21 2273161359…94<21> 2×11×2969×3480145379…83<16>
13 Fully factored 22 7128742624…55<22> 5×1425748524…31<22>
14 Fully factored 23 1619731205…46<23> 2×17×31×197×101281×770208188707<12>
15 Fully factored 27 1530046541…23<27> 79×51713×2971499×1260382106…51<14>
16 Fully factored 30 1241861660…38<30> 2×37×6121×2741694874…47<24>
17 Fully factored 32 6338796465…29<32> 461×17627×7800590453…07<25>
18 Fully factored 33 5286677602…17<33> 71×97×103×7452732251…97<27>
19 Fully factored 35 5935253185…98<35> 2×72×112×88643×177283×3185050083…99<21>
20 Fully factored 40 1006330396…19<40> 2411×4173912885…29<36>
21 Composite 40 1466948616…06<40> 2×101×53899×1347357439…97<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 #21:
134735743959820255345935771680297
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 '110' --type 44 --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":"110"},"type":44,"part":"last20","fr":0}}'