factordb · sequences

Sequence

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whole sequence last 20 terms last term range to

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Aliquot of 150^79 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	172	8150973203…00<172>	2⁷⁹×3⁷⁹×5¹⁵⁸
1	Fully factored	173	2241517631…00<173>	2⁵×3×5⁴×149×6661×88789×161926419631<12>×8780385525…61<55>×2981774138…69<91>
2	Composite	173	5161649605…00<173>	2⁵×3×5⁴×284538097817<12>×3023408607…89<157>
↳	Open Open - the last known term is composite and not yet fully factored.

Open end - submit a factor of the remaining composite (157 digits) of term #2:

3023408607876990824378702189676262930952907610505885546049278206832611120656963258872575770234370195751225861595664268389858204291670416007461434027562778489

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 '150^79' --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":"150^79"},"type":1,"part":"last20","fr":0}}'