factordbrpc · fdb
Sign in
Show
Open
Conway climb · Base 23 of 13969 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 5 13969 61×229
1 Fully factored 5 32498 2×16249
2 Fully factored 6 575931 3×191977
3 Fully factored 7 1031500 22×53×2063
4 Fully factored 9 310382233 7×19×37×63073
5 Fully factored 11 26656877210<11> 2×5×2665687721<10>
6 Fully factored 12 176311785518<12> 2×11×29×179×1543859
7 Fully factored 15 1027655952…10<15> 2×5×7×61×479×50244017
8 Fully factored 17 4888813116…09<17> 3×353×4616442980…51<14>
9 Fully factored 19 1848497094…31<19> 487×701×7451×726703463
10 Fully factored 21 2454947736…30<21> 2×5×131×307×2056139×296879431
11 Fully factored 24 3142885275…01<24> 17×1021×766700269×23617191397<11>
12 Fully factored 26 5542286008…06<26> 2×3×7×137×389×2476107381…51<20>
13 Fully factored 29 8463337163…43<29> 55903×1513932555…81<25>
14 Fully factored 30 1813592822…88<30> 22×41×233×4746134257…99<25>
15 Fully factored 34 1003898189…29<34> 47×2833×7539546748…79<28>
16 Fully factored 35 2268361644…65<35> 32×5×7×63809×1128547395…39<28>
17 Composite 38 1809643854…69<38> 7×19×2672533×5091179331…21<29>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (29 digits) of term #17:
50911793310049704814963329721
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 '13969' --type 108 --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":"13969"},"type":108,"part":"last20","fr":0}}'