factordbrpc · fdb
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Inverse home prime · Base 4 of 172 length 76 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
56 Fully factored 71 2188595322…34<71> 2×11×4729×18777601×73965449×4170812924…89<19>×3631480836…13<32>
57 Fully factored 73 3163465969…58<73> 2×137×3890016885…23<26>×2967981008…29<45>
58 Fully factored 74 2351476816…46<74> 2×32467679×3772863662…93<28>×9598168072…09<38>
59 Fully factored 75 1275815371…10<75> 2×5×191×79861×343715303×1276886070…59<21>×1905762167…33<38>
60 Fully factored 77 2593989044…86<77> 2×3×1459×37000903×51446971×1856922579…73<15>×1034409286…93<19>×8104071313…87<25>
61 Fully factored 78 7762158218…18<78> 2×7×479×1157494515…03<75>
62 Fully factored 79 7585756054…94<79> 2×3×7295354979…17<18>×2367764642…27<30>×7319183949…11<31>
63 Fully factored 80 4278799730…62<80> 2×53×151×2673247363…77<76>
64 Fully factored 81 1751939392…42<81> 2×32×7×79×641×2745765297…03<74>
65 Fully factored 82 7370607598…78<82> 2×809×4555381704…71<79>
66 Fully factored 83 1865884346…54<83> 2×3×13×131×353×21938585621<11>×4299033710…43<15>×5484848568…17<51>
67 Fully factored 85 2847896199…14<85> 2×7×4139×6173×4100311×1521818935…69<29>×1275923496…37<42>
68 Fully factored 87 1821058866…70<87> 2×5×5953×6026193571…97<17>×5076273633…87<65>
69 Fully factored 88 3835523914…18<88> 2×3×17×24530791×2243513893<10>×6832571853…43<69>
70 Fully factored 90 2016619269…26<90> 2×5366241720…01<15>×5025408936…47<22>×3738972560…29<53>
71 Fully factored 91 3180766081…74<91> 2×7290490872…47<15>×2181448504…21<76>
72 Fully factored 91 9824370669…06<91> 2×89×7849497530…89<25>×7031417416…43<64>
73 Fully factored 93 1392715704…06<93> 2×7×53×5479817729…17<20>×6225663263…29<20>×4277712268…31<23>×1286160768…71<28>
74 Fully factored 94 2167176608…22<94> 2×3×61×907399×1592576067…13<14>×3180040122…73<29>×1288493221…67<44>
75 Composite 95 1928330191…18<95> 2×821×18671×6289855514…49<87>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (87 digits) of term #75:
628985551446525004026111725235817296550911383070336375209531357437462213573002623032349
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 '172' --type 14 --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":"172"},"type":14,"part":"last20","fr":0}}'