factordbrpc · fdb
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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 #1100000008674974274 1,698 digits created 2026-03-09

Value

428721206743879468759242997940878030131020502009841089717097210400299481595289403715986035780332838376155979359591547979085222748023231513504600668409985252619488774201983302051748689016336539092507544877247769141034635094448161790418262101629039204185711208068467701974721462004070955431900534723594977251566533154167023690867807812383888553673081832192947320274415529735401937898661960427962806403056378890092760409753069813109279895300772065761820683430429604977847430655662085339305604978644546538363991168447625444275252691737380308515331084727792318821990646660978764893436564193342597123442633196362334796982564387903538888492679652625505107075107657750798361971170541842960593438192313571806985291479246542890934006717473127172207464270831765296121021751172513770501856170415584855457901214765685931472487163147503965885198024168696298899748616680745763373118953487717947724294452751619510656522000582753350307972063364469536605666336594659675031551616287393069288421816921293161846753904478398857225415421487365643292584921962588822140827103649233682563951950501989264386750481605713992843701481881772953219612601776810640781391372206517330893392010008960851215854796345642638589631288877549298160349320606787490239189370597881244684506706502833997374423892716359135766363541464251260772316168317269439711885685476461711947831568218333021591345172623263724330214517413665330821938266323451066469689896701866592942163973261390602862187481423850946662555212774164085548585498571395813291019603972221145141423409059253171048044971716171939047514166626979201489842199855268283025905741243559108172117515002643504441819586045722006598033381158564156316761456960827607230686849770080153511133641
term 458^638+457
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Is factor of

Primality

Primality certificateproven prime

Proven by a stored certificate (1,698 digits).

Certificatedownload
Certificate chainshow steps
Uploaded byAnonymous

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008674974274 --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":1100000008674974274},"decimal":true,"detail":2}}'