factordb · sequences

Sequence

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whole sequence last 20 terms last term range to

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Aliquot of 150^83 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	181	4126430184…00<181>	2⁸³×3⁸³×5¹⁶⁶
1	Fully factored	182	1134768300…00<182>	2³×3²×5²×17×167×2220594694…63<175>
2	Composite	182	2924496565…20<182>	2³×3²×5×11×96419×7659374538…23<173>
↳	Open Open - the last known term is composite and not yet fully factored.

Open end - submit a factor of the remaining composite (173 digits) of term #2:

76593745388966646935365815257851483318201961196524984355026486777273927658769042651001644180874897531364259923122744003314181555743022399423823168005420158216760676133806823

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 '150^83' --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":"150^83"},"type":1,"part":"last20","fr":0}}'