factordbrpc · fdb
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Home prime · Base 22 of 866 length 18 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
0 Fully factored 3 866 2×433
1 Fully factored 4 1401 3×467
2 Fully factored 4 1919 19×101
3 Fully factored 4 9297 32×1033
4 Fully factored 6 735745 5×37×41×97
5 Fully factored 9 575586933 3×191862311
6 Fully factored 10 7674935975<10> 52×7×43856777
7 Fully factored 12 287688673225<12> 52×79×145665151
8 Fully factored 15 1390331599…83<15> 3×7×23×197×6197×235789
9 Fully factored 18 9390369127…05<18> 5×23×7127×1145718867…61<13>
10 Fully factored 20 3141337678…33<20> 101×113×233×41051×287763127
11 Fully factored 23 1385698065…83<23> 3×144033047×3206898449…63<14>
12 Fully factored 25 4456658038…71<25> 13×23×317×373×461×2734444442…29<15>
13 Fully factored 27 4184119494…69<27> 1213×370631×30009731×31012689733<11>
14 Fully factored 29 3889712336…17<29> 3×31×3889×28697×42743×8767890030…51<14>
15 Fully factored 33 5064622467…35<33> 5×31×167×1217×83059×16301081×1187422369…37<14>
16 Fully factored 37 8911924682…85<37> 5×211494737×18630752711<11>×4523468154…71<18>
17 Composite 40 4330426794…23<40> 4330426794…23<40>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (40 digits) of term #17:
4330426794676219591840557888770240551123
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 '866' --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":"866"},"type":39,"part":"last20","fr":0}}'