factordbrpc · fdb
Sign in
Show
Terminates
Mid-divisor concatenation · Base 10 of 1470 length 11 The sequence reaches a prime. ↓ .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 4 1470 2×3×5×72
1 Fully factored 4 3542 2×7×11×23
2 Fully factored 4 4677 3×1559
3 Fully factored 5 31559 11×19×151
4 Fully factored 6 151209 32×53×317
5 Fully factored 6 317477 73×4349
6 Fully factored 6 734349 3×7×112×172
7 Fully factored 6 847867 487×1741
8 Fully factored 7 4871741 7×17×40939
9 Fully factored 8 11940939 34×147419
10 Fully factored 8 81147419 81147419
↳ Terminates The sequence reaches a prime and terminates.
From the command linefdb · curl
fdb
fdb seq view '1470' --type 143 --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":"1470"},"type":143,"part":"last20","fr":0}}'