factordb · sequences

Sequence

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whole sequence last 20 terms last term range to

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Aliquot of 150^76 length 3 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	166	2415103171…00<166>	2⁷⁶×3⁷⁶×5¹⁵²
1	Fully factored	166	6641533721…31<166>	7×97×28979×7251031×4654954615…61<152>
2	Composite	166	1027306980…49<166>	7×12689689357<11>×1156514835…51<155>
↳	Open Open - the last known term is composite and not yet fully factored.

Open end - submit a factor of the remaining composite (155 digits) of term #2:

11565148355733543315567058542922455265474787288185670156122762022611576329189737396528418243455145058077339585867194727034478761821985067839520771416823651

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 '150^76' --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":"150^76"},"type":1,"part":"last20","fr":0}}'