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Enter a value, an expression, or a term with a variable like 10^n+1 to list a range. Switch to Database id to look a number up by its stored id. Reading never stores anything; use Create to add a number to the database. See the expression syntax & functions reference.

P · Proven prime
id #1100000009041123775 1,116 digits created 2026-08-03

Value

853202985661479724765081870469994194182465289246476420660828436068488939684053866934067182173495937839814082466321530177317502759271268988451758840823023061520666486929752077121914729523781842425521937788596049985658772232821785805592836267344166904017195899275166058002634846674103806139230517063696638484451938481829419958710219479980021529733337713539996638859606161386746234068185177561080056129714253286650168148046971631401479645859478893457076741665084065577574292455691220779960229715205685496817696932348739235913851319396803828700524097817655373658480013207287117938225040615310669368563912322763042471075798979114762373146395257691773878966703185452498938801091770137290550674747057807681657466819099199027566963738376951767005214130467901154111998702046258972803370714388248477412191760342315559627169532524461226916712141727463548225512934572040048115076436106866183367151321611171612222489404856833295153339910972188358072650304013491302424119964017849961391388439727913739221339040932827177356409027893486852139816519055738919034624554412437165109761733402058880493652773558625308819291703716174754621
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 13 of the certificate chain of a 1,297-digit prime (108 intermediate primes).

Certified number1,297-digit prime
Certificatedownload
Certificate chainshow step 13 of 108

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009041123775 --detail 2 --decimal
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"id":1100000009041123775},"decimal":true,"detail":2}}'