factordbrpc · fdb
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Terminates
Mid-divisor concatenation · Base 3 of 2108 length 14 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 2108 22×17×31
1 Fully factored 4 2816 28×11
2 Fully factored 4 3628 22×907
3 Fully factored 4 9655 5×1931
4 Fully factored 5 12866 2×7×919
5 Fully factored 5 31537 11×47×61
6 Fully factored 5 44986 2×83×271
7 Fully factored 6 121285 5×127×191
8 Fully factored 6 139874 2×7×97×103
9 Fully factored 6 150853 61×2473
10 Fully factored 6 402694 2×29×53×131
11 Fully factored 6 574531 97×5923
12 Fully factored 6 642340 22×5×32117
13 Fully factored 7 1213097 1213097
↳ Terminates The sequence reaches a prime and terminates.
From the command linefdb · curl
fdb
fdb seq view '2108' --type 141 --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":"2108"},"type":141,"part":"last20","fr":0}}'