factordbrpc · fdb
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Terminates
Mid-divisor concatenation · Base 2 of 980 length 17 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 3 980 22×5×72
1 Fully factored 4 1827 32×7×29
2 Fully factored 4 1919 19×101
3 Fully factored 4 2533 17×149
4 Fully factored 4 4501 7×643
5 Fully factored 4 7811 73×107
6 Fully factored 4 9451 13×727
7 Fully factored 5 14039 101×139
8 Fully factored 5 25995 3×5×1733
9 Fully factored 5 32453 17×23×83
10 Fully factored 5 42887 13×3299
11 Fully factored 5 56547 32×61×103
12 Fully factored 5 94005 32×5×2089
13 Fully factored 6 186409 19×9811
14 Fully factored 6 321107 107×3001
15 Fully factored 6 441273 3×7×21013
16 Fully factored 6 709141 709141
↳ Terminates The sequence reaches a prime and terminates.
From the command linefdb · curl
fdb
fdb seq view '980' --type 140 --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":"980"},"type":140,"part":"last20","fr":0}}'