Open
Show sequence-development graph
| n | Status | Digits | Term | Factorization |
|---|---|---|---|---|
| 0 | Fully factored | 3 | 874 | 2×19×23 |
| 1 | Fully factored | 4 | 1994 | 2×997 |
| 2 | Fully factored | 5 | 40363 | 181×223 |
| 3 | Fully factored | 6 | 132172 | 22×173×191 |
| 4 | Fully factored | 8 | 29887004 | 22×7×541×1973 |
| 5 | Fully factored | 11 | 21806640209<11> | 457×47716937 |
| 6 | Fully factored | 12 | 177098880410<12> | 2×5×31×149×3834139 |
| 7 | Fully factored | 15 | 4502366643…08<15> | 23×72×79×89×163356979 |
| 8 | Fully factored | 19 | 8594741764…55<19> | 5×1718948352…71<19> |
| 9 | Fully factored | 20 | 2198172411…06<20> | 2×2971×9667963×382643311 |
| 10 | Fully factored | 21 | 2353576927…69<21> | 13×29×263×1259×1783×1057436327<10> |
| 11 | Composite | 26 | 2808476266…46<26> | 2×7×31×6471143472…69<23> |
| ↳ | Open Open - the last known term is composite and not yet fully factored. | |||
Open end - submit a factor of the remaining composite
(23 digits) of term #11:
64711434722841143558569
Check for factors - let the server run a small P-1 / P+1 / ECM step on the composite:
From the command linefdb · curl
fdb
fdb seq view '874' --type 112 --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":"874"},"type":112,"part":"last20","fr":0}}'