factordbrpc · fdb
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Conway climb · Base 19 of 8782 length 17 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 8782 2×4391
1 Fully factored 5 18109 7×13×199
2 Fully factored 5 52905 3×5×3527
3 Fully factored 6 428785 5×7×12251
4 Fully factored 8 13304993 13×1023461
5 Fully factored 8 33212748 22×3×2767729
6 Fully factored 11 35898774932<11> 22×33023×271771
7 Fully factored 14 1298927640…08<14> 24×107×10859×698701
8 Fully factored 16 4927145346…93<16> 7×12973×54257142263<11>
9 Fully factored 18 2985571659…43<18> 7×1877×34519×658274423
10 Fully factored 19 5811729872…74<19> 2×3×4679×1800803×114956867
11 Fully factored 21 6327839184…62<21> 2×7×83×10861×5013944145…91<14>
12 Fully factored 24 2478787073…22<24> 2×311×2161×94670281×1947961661<10>
13 Fully factored 27 1075963608…74<27> 2×13×4138321572…49<25>
14 Fully factored 28 1921226967…00<28> 23×53×1921226967…97<25>
15 Fully factored 29 2947839567…18<29> 2×4441×3318891654…99<25>
16 Composite 30 6825996469…58<30> 2×251×1359760252…29<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 #16:
1359760252803250419162652729
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 '8782' --type 104 --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":"8782"},"type":104,"part":"last20","fr":0}}'