factordb · sequences

Sequence

Start with

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whole sequence last 20 terms last term range to

Terminates

Mid-divisor concatenation · Base 8 of 50140 length 7 The sequence reaches a prime. ↓ .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	5	50140	2²×5×23×109
1	Fully factored	6	111846	2×3×7×2663
2	Fully factored	6	174695	5×34939
3	Fully factored	7	1345659	3×7×139×461
4	Fully factored	7	3986791	167×23873
5	Fully factored	7	5496129	3²×610681
6	Fully factored	8	19485049	19485049
↳	Terminates The sequence reaches a prime and terminates.

From the command linefdb · curl

fdb

fdb seq view '50140' --type 142 --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":"50140"},"type":142,"part":"last20","fr":0}}'