factordbrpc · fdb
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Conway climb · Base 9 of 802 length 21 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.
nStatus DigitsTermFactorization
1 Fully factored 4 1859 11×132
2 Fully factored 4 8138 2×13×313
3 Fully factored 6 127888 24×7993
4 Fully factored 7 1307071 43×113×269
5 Fully factored 8 22934609 43×533363
6 Fully factored 9 206201030 2×5×7×839×3511
7 Fully factored 10 9217506484<10> 22×2081×1107341
8 Fully factored 12 637575658010<12> 2×5×31×2056695671<10>
9 Fully factored 13 6606026351…65<13> 5×97×87961×154849
10 Fully factored 16 1056898071…52<16> 23×11×23×522182841773<12>
11 Fully factored 18 3525446032…28<18> 22×5851×654839×23003263
12 Fully factored 20 2822173155…61<20> 43×22543×2911410808…89<14>
13 Fully factored 21 5274210476…39<21> 112435837×4690862466…47<13>
14 Fully factored 22 2572171312…04<22> 22×6430428280…01<21>
15 Fully factored 23 2033846087…21<23> 739×2752159793…39<20>
16 Fully factored 23 8088815456…90<23> 2×5×41×1972881818…19<21>
17 Fully factored 25 1875201085…43<25> 421×1613×1823×602627×2513599771<10>
18 Fully factored 27 3024115760…31<27> 53×5705878793…27<25>
19 Fully factored 27 3481432189…00<27> 24×52×19×2543×1801349519…01<20>
20 Composite 30 1063697873…20<30> 22×5×167×686879×4636514103…37<20>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (20 digits) of term #20:
46365141036236546837
Check for factors - let the server run a small P-1 / P+1 / ECM step on the composite:
level 0 done · takes up to a minute
From the command linefdb · curl
fdb
fdb seq view '802' --type 94 --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":"802"},"type":94,"part":"last20","fr":0}}'