Open
Show sequence-development graph
| n | Status | Digits | Term | Factorization |
|---|---|---|---|---|
| 0 | Fully factored | 3 | 831 | 3×277 |
| 1 | Fully factored | 4 | 1144 | 23×11×13 |
| 2 | Fully factored | 5 | 10893 | 3×3631 |
| 3 | Fully factored | 5 | 18370 | 2×5×11×167 |
| 4 | Fully factored | 6 | 194953 | 11×37×479 |
| 5 | Fully factored | 8 | 15800687 | 72×322463 |
| 6 | Fully factored | 9 | 172125160 | 23×5×4303129 |
| 7 | Fully factored | 11 | 15307521875<11> | 55×1381×3547 |
| 8 | Fully factored | 10 | 2179169610<10> | 2×3×5×72638987 |
| 9 | Fully factored | 12 | 260227357669<12> | 292×309426109 |
| 10 | Fully factored | 12 | 203427069244<12> | 22×7×31×234362983 |
| 11 | Fully factored | 14 | 7341885041…89<14> | 7×47×937×3461×68813 |
| 12 | Fully factored | 16 | 4173492150…25<16> | 3×52×89×1572×25365827 |
| 13 | Fully factored | 18 | 5560021338…65<18> | 3×5×23×67×45061×533803891 |
| 14 | Fully factored | 22 | 2728938785…82<22> | 2×29×12030461×3910961409…89<13> |
| 15 | Fully factored | 24 | 5025471456…41<24> | 23×47×4648909765…61<21> |
| 16 | Composite | 25 | 5538011204…99<25> | 5538011204…99<25> |
| ↳ | Open Open - the last known term is composite and not yet fully factored. | |||
Open end - submit a factor of the remaining composite
(25 digits) of term #16:
5538011204043716321972599
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 '831' --type 102 --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":"831"},"type":102,"part":"last20","fr":0}}'