factordbrpc · fdb
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Conway climb · Base 3 of 20884 length 34 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
14 Fully factored 11 83205595325<11> 52×163×20418551
15 Fully factored 12 184863038525<12> 52×11×6719×100049
16 Fully factored 13 1639979019…12<13> 22×37×83×133505293
17 Fully factored 14 6452036690…75<14> 53×397×7757×167611
18 Fully factored 15 1233951874…79<15> 631×4051×6779×7121
19 Fully factored 16 1605486911…16<16> 22×9601×41805200279<11>
20 Fully factored 17 1572807197…34<17> 2×17096987×459966191
21 Fully factored 18 1199342598…34<18> 2×769×7798066310…43<14>
22 Fully factored 19 1058976073…50<19> 2×52×7×19×9829×16201497839<11>
23 Fully factored 20 1078550363…67<20> 17×23×1889×3174497×4599989
24 Fully factored 20 2415843418…85<20> 5×37×167×491×1592572054…33<13>
25 Fully factored 21 1993361904…65<21> 5×89×853×3853×59063×2307611
26 Fully factored 23 1585834090…60<23> 23×5×13×19×487×1033×3190593838…67<13>
27 Fully factored 25 1723916461…37<25> 312×227×7902544894…71<19>
28 Fully factored 24 2834273997…83<24> 487×19477×1917731×15581279507<11>
29 Fully factored 25 1441673741…44<25> 23×11×19×43×21975287×912489138997<12>
30 Fully factored 27 1384881689…32<27> 23×389×14369×2878849×1075790374…81<13>
31 Fully factored 28 3756695571…05<28> 5×3373×228559×6766037×144041276579<12>
32 Fully factored 29 7791726644…95<29> 5×563×2767931312…13<26>
33 Composite 30 2447217726…65<30> 5×13×59×6381271776…99<26>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (26 digits) of term #33:
63812717763211802996174999
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 '20884' --type 88 --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":"20884"},"type":88,"part":"last20","fr":0}}'