factordbrpc · fdb
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Conway climb · Base 13 of 3771 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 4 3771 32×419
1 Fully factored 5 90496 27×7×101
2 Fully factored 5 73785 3×5×4919
3 Fully factored 7 1261603 72×25747
4 Fully factored 7 2681920 26×5×172×29
5 Fully factored 9 156352069 97×1611877
6 Fully factored 9 469812350 2×52×7×179×7499
7 Fully factored 12 330815301542<12> 2×11×569×821×32189
8 Fully factored 14 6677439022…60<14> 29×5×37×47×14999279
9 Fully factored 15 8247891119…99<15> 3×383×571×1257149081<10>
10 Fully factored 18 1624869020…58<18> 2×23×409×2094041×4124317
11 Fully factored 20 1848764640…92<20> 22×17×1769981×153604560149<12>
12 Fully factored 23 4108399729…63<23> 41×191×5246328347…73<19>
13 Fully factored 24 7808609905…17<24> 229×1602539633<10>×2127793441…81<13>
14 Fully factored 26 5661511326…31<26> 389×4475069×3252243416…91<17>
15 Fully factored 26 9633716224…81<26> 72×31×8179×7754179805…81<19>
16 Fully factored 28 3890842963…12<28> 22×61×311×1931968067<10>×2653954931…29<14>
17 Composite 32 3382237266…88<32> 22×19×191×2330006383…93<28>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (28 digits) of term #17:
2330006383872466966947959093
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 '3771' --type 98 --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":"3771"},"type":98,"part":"last20","fr":0}}'