factordbrpc · fdb
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Terminates
Mid-divisor concatenation · Base 10 of 1028 length 31 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
11 Fully factored 7 4491287 503×8929
12 Fully factored 7 5038929 34×7×8887
13 Fully factored 7 5678887 1019×5573
14 Fully factored 8 10195573 89×97×1181
15 Fully factored 8 11818633 1571×7523
16 Fully factored 8 15717523 941×16703
17 Fully factored 8 94116703 2129×44207
18 Fully factored 9 212944207 7×1601×19001
19 Fully factored 10 1120719001<10> 103×10880767
20 Fully factored 11 10310880767<11> 11×31×167×181061
21 Fully factored 11 56947181061<11> 3×173×199×551381
22 Fully factored 12 103281551381<12> 1223×84449347
23 Fully factored 12 122384449347<12> 3×40794816449<11>
24 Fully factored 12 340794816449<12> 89×4451×860291
25 Fully factored 12 396139860291<12> 3×7×17×331×3352373
26 Fully factored 13 1181673352…73<13> 97×5387×2261407
27 Fully factored 13 5225392261…07<13> 3×53×24481×1342433
28 Fully factored 14 1342433389…79<14> 43×11411×27359023
29 Fully factored 14 4906732735…23<14> 3×769×3271×6502259
30 Fully factored 14 6502259754…97<14> 6502259754…97<14>
↳ Terminates The sequence reaches a prime and terminates.
From the command linefdb · curl
fdb
fdb seq view '1028' --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":"1028"},"type":143,"part":"last20","fr":0}}'