factordbrpc · fdb
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Conway climb · Base 11 of 4601 length 21 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
1 Fully factored 4 5310 2×32×5×59
2 Fully factored 6 369351 32×41039
3 Fully factored 7 5677824 28×3×7393
4 Fully factored 7 4882846 2×292×2903
5 Fully factored 8 43677006 2×3×47×154883
6 Fully factored 9 494903555 5×43×2301877
7 Fully factored 11 12629988685<11> 5×23609×106993
8 Fully factored 12 133489483057<12> 7×173×110230787
9 Fully factored 13 2034376011…77<13> 32×226041779053<12>
10 Fully factored 14 1021195025…38<14> 2×83×149×2971×138967
11 Fully factored 16 1020341035…72<16> 22×7×827×33073×1332319
12 Fully factored 18 1031482162…80<18> 25×5×97×971×25453×268913
13 Fully factored 20 1391393123…26<20> 2×7×113×4099×2145682480…07<13>
14 Fully factored 21 1664427881…28<21> 22×3×17×71×659×1743777426…63<14>
15 Fully factored 24 1797220524…67<24> 7×929×1039×2659941394…51<17>
16 Fully factored 24 6266838091…16<24> 25×19×28557029×3609373892…13<14>
17 Fully factored 27 2675002790…08<27> 24×163×18461×18283477×303880365583<12>
18 Fully factored 30 3424664845…80<30> 22×5×72×557×719×106903×174049×46897154131<11>
19 Fully factored 34 4705342203…57<34> 7×6721917433…51<33>
20 Composite 35 1545183546…98<35> 2×34×13×83×8839823948…51<29>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (29 digits) of term #20:
88398239482476165415126787551
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 '4601' --type 96 --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":"4601"},"type":96,"part":"last20","fr":0}}'