factordb · sequences

Sequence

Start with

Show

whole sequence last 20 terms last term range to

Open

Aliquot of 188^63 length 4 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.

n	Status	Digits	Term	Factorization
0	Fully factored	144	1870443110…72<144>	2¹²⁶×47⁶³
1	Fully factored	144	1951766723…88<144>	2⁹×19×43×127×2390143411<10>×8261452743…47<34>×1860594736…83<93>
2	Fully factored	144	2281741878…92<144>	2⁹×939166573×4745193487…67<132>
3	Composite	144	2277285355…44<144>	2⁸×47×650711907281<12>×2908646054…07<128>
↳	Open Open - the last known term is composite and not yet fully factored.

Open end - submit a factor of the remaining composite (128 digits) of term #3:

29086460543182081257235815485759528068191523808479940015240513691337787618393724524680212061114479345224000830587498737353128907

Check for factors - let the server run a small P-1 / P+1 / ECM step on the composite:

Already checked (P-1, P+1 and ECM steps done, level 3).

From the command linefdb · curl

fdb

fdb seq view '188^63' --type 1 --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":"188^63"},"type":1,"part":"last20","fr":0}}'