factordbrpc · fdb
Sign in
Show
Open
Inverse home prime · Base 20 of 17414 length 16 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 5 17414 2×8707
1 Fully factored 6 174142 2×87071
2 Fully factored 7 1741422 2×3×23×12619
3 Fully factored 10 2019049262<10> 2×43×389×60353
4 Fully factored 12 193132712862<12> 2×32×557×19263187
5 Fully factored 16 1232843972…62<16> 2×11×5603836238…21<14>
6 Fully factored 17 2241534495…22<17> 2×1120767247…11<17>
7 Fully factored 18 2241534495…22<18> 2×3×157×2379548296…41<15>
8 Fully factored 20 3807277274…62<20> 2×281×431×5927×48049×551927
9 Fully factored 23 4521388444…22<23> 2×33×11×48799×197269×7907070473<10>
10 Fully factored 29 1295494426…62<29> 2×7×317×165133×1194631×1479723598…63<14>
11 Fully factored 32 2424379142…42<32> 2×307×2249633×3656843×4799700946…87<16>
12 Fully factored 34 7863830031…42<34> 2×3×43×131×311×7481397452…39<27>
13 Fully factored 38 1915237747…62<38> 2×21601×4433215471…31<33>
14 Fully factored 40 1418628950…22<40> 2×3×673×1699×351517×5882511595…43<27>
15 Composite 44 4818953498…62<44> 2×56821×4240468751…11<39>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (39 digits) of term #15:
424046875164527456755844020587096677611
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 '17414' --type 70 --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":"17414"},"type":70,"part":"last20","fr":0}}'