factordbrpc · fdb
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Inverse home prime · Base 2 of 2854 length 46 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
26 Fully factored 21 1703595609…58<21> 2×3×109×2604886252…77<18>
27 Fully factored 21 5334807045…54<21> 2×97×2749900538…91<19>
28 Fully factored 22 1407949075…82<22> 2×7×1005677911…13<21>
29 Fully factored 22 3218169316…46<22> 2×79×58271×3495419716…47<15>
30 Fully factored 23 1172868231…74<23> 2×5864341159…87<22>
31 Fully factored 23 2345736463…50<23> 2×3×53×103×3036552056…87<18>
32 Fully factored 24 3184055609…42<24> 2×6239927621<10>×2551356203…51<14>
33 Fully factored 24 8766393164…54<24> 2×3×599×650085937×375208009343<12>
34 Fully factored 25 6600729105…94<25> 2×40177×4045369×2030608813…19<14>
35 Fully factored 26 2232678001…90<26> 2×3×5×41×9227×1967254110…99<19>
36 Fully factored 27 2640403770…98<27> 2×815782511×1618325800…09<18>
37 Fully factored 27 6950656388…10<27> 2×34×5×37×47×4934478015…89<21>
38 Fully factored 29 1655736070…30<29> 2×3×5×941×3313727×1769960219…43<18>
39 Fully factored 29 9730459209…70<29> 2×5×236475469×4114785880…23<20>
40 Fully factored 30 3534574157…46<30> 2×229×71419×6391499×1690655530…27<16>
41 Fully factored 31 1903508904…94<31> 2×3×251×521×759053×80837969×39537091967<11>
42 Fully factored 32 2333857974…38<32> 2×7×43×1399×44843×6179673909…67<21>
43 Fully factored 33 1698655829…78<33> 2×7×573941×2114024948…97<26>
44 Fully factored 33 7093490637…46<33> 2×31×9697×2599777×6696233×6777417826…29<14>
45 Composite 34 5000851685…66<34> 2×821×3045585679…23<31>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (31 digits) of term #45:
3045585679063189058673525370723
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 '2854' --type 12 --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":"2854"},"type":12,"part":"last20","fr":0}}'