Open
Show sequence-development graph
| n | Status | Digits | Term | Factorization |
|---|---|---|---|---|
| 0 | Fully factored | 3 | 447 | 3×149 |
| 1 | Fully factored | 4 | 1232 | 24×7×11 |
| 2 | Fully factored | 5 | 15306 | 2×3×2551 |
| 3 | Fully factored | 6 | 283770 | 2×33×5×1051 |
| 4 | Fully factored | 9 | 101946368 | 210×29×3433 |
| 5 | Fully factored | 9 | 119055096 | 23×34×269×683 |
| 6 | Fully factored | 11 | 36801629092<11> | 22×613×709×21169 |
| 7 | Fully factored | 15 | 2457906861…05<15> | 5×7×7022591031…23<13> |
| 8 | Fully factored | 17 | 1188902899…61<17> | 47×89×47057×60399631 |
| 9 | Fully factored | 19 | 1986899918…18<19> | 2×281×2258981×1565045969<10> |
| 10 | Fully factored | 20 | 4221750796…67<20> | 31×1361855095…57<19> |
| 11 | Fully factored | 21 | 4719767930…26<21> | 2×3×7×1123754269…03<20> |
| 12 | Fully factored | 23 | 1194360338…17<23> | 1229201×9716558470…17<16> |
| 13 | Fully factored | 23 | 5169157904…76<23> | 22×7919×1631884677…51<19> |
| 14 | Composite | 26 | 7925700720…92<26> | 22×31×6391694129…33<24> |
| ↳ | Open Open - the last known term is composite and not yet fully factored. | |||
Open end - submit a factor of the remaining composite
(24 digits) of term #14:
639169412929409673334733
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 '447' --type 104 --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":"447"},"type":104,"part":"last20","fr":0}}'