factordbrpc · fdb
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Inverse home prime · Base 33 of 4169 length 16 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
0 Fully factored 4 4169 11×379
1 Fully factored 5 12518 2×11×569
2 Fully factored 6 620006 2×151×2053
3 Fully factored 8 73783646 2×36891823
4 Fully factored 10 1217430161<10> 433×2811617
5 Fully factored 10 3061851346<10> 2×479×3196087
6 Fully factored 12 114857794328<12> 23×432×853×9103
7 Fully factored 18 4225200977…76<18> 26×7×89×692269×15307507
8 Fully factored 27 8425306361…32<27> 22×1181×34283383×5202261060…21<16>
9 Fully factored 31 7967673716…25<31> 52×13×2451591912…57<29>
10 Fully factored 33 8810285857…36<33> 22×631×27241×803611×1736281×9183573734…19<13>
11 Fully factored 38 1816497294…51<38> 13×773412817×1806675012…31<28>
12 Fully factored 38 7699767600…61<38> 31×14029×2129741×8313088740…79<26>
13 Fully factored 40 3858227883…36<40> 22×91193×1057709441…13<35>
14 Fully factored 44 1365997864…42<44> 2×941×7258224570…31<40>
15 Composite 45 2608388163…02<45> 2×29×369991×1215494693…09<38>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (38 digits) of term #15:
12154946937573831183177648044464441709
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 '4169' --type 83 --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":"4169"},"type":83,"part":"last20","fr":0}}'