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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 #1100000008814509580 1,965 digits created 2026-05-19

Value

131325040265268804247144654162302746070661625269071999975819668538762761467478844009768730877833981582225137696854379962301675577885912084917628318596814928357525906434676482498914972338543143683652693172412278282874678824096249347486122628110253628730429524299340404497025313406193846313202961719689133170116503344483681031723001985419153949073897750454332191522134468186284135418839038861653133521787162413027382905443008175952296154544245070559281704622248441366338780363922804370834568507315235875055481114665186801610332787781277571987517692292511022568617973871122304342125687974660391938141933830526004981739136014217136661390945587191392889274259466554131499724605248637636223774279874813457390083468073142581040863768962191909304863568898764864402166932086295791038778022109280885953545251845361220914883439757391113567697947544566958079284109617142710947658226660317202863716896194319558200559735955576552348045106482420941219302137637478415189902728809750442325274437142450689743577562124426875446331826400381580746780389776121489631060181868939044798517826724669608312771535507164097487669951274921387794066018244425322439812007436795728857816381417983290956529844566570848146753644092351051416905450513145133963274544968197795546449505524130596835221888892012287173814076463272904428090693776000022335227675364196243852722190672063767350630275586610250687027086964071304784805594576601770463021349471798551790227911999714934899776404506603667594622045196437985136287674099916070392855173210198130258242242711289200733500073167230949334799726258774654984244444529833297491530677060168621134257798758210868400184339212181698757408109962286378678223811059640472235060035965336356902246853053131292534462206601943546491374896157467187149795049725971254931555621670219672484936029476971140762985924590327903270483634525408805634016623716924156706784519080275835810368058083430999751790945961417640765881923375772227588696341949308505161040393535610430744743
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 223 of the certificate chain of a 5,244-digit prime (331 intermediate primes).

Certified number5,244-digit prime
Certificatedownload
Certificate chainshow step 223 of 331

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008814509580 --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":1100000008814509580},"decimal":true,"detail":2}}'