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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 #1100000009070502739 1,658 digits created 2026-08-10

Value

15015200278775123762823286086915823522534650935036518499912579845282248004250574944985319795507233495771881981185392732919009724651904269775375796429769023186815357075716558366485096294519697933598614135430832870528147293606671453728990872834406086729937599672646329053945240861675268247748427335352869388702324309345605511290435388010178546960352892425507309471281233678347387411421812336787478993107047074424060414901203378123423883583534296349153270292410631168220963767516554977720394867493308183534372979208328801442383028761169765263932393994405193716887455598818003570533176140067248316389780536036975175597334081522273779998703854476731498883487138557028788743996769622050760332941653494835303930286350098699369330148934747662024219539976711099727503445600736906769844872190129055382589292768923049805864996665994360362437443772348746172553708278623674697548573008983302745128524556480067048060220267640287221355218163258427521451925260753997947456034327982567810068605565034028118439153484819222851808206777468207190414368067837657085093831137049128455750539598344548081103458302113503198405674774979543065060975264279655268684661783661983338107539878968102305808208486513253830984574374868115296512412114279072611483060664146512236601599113872373936752964874051631248245026298494164563144279608870882962903599977684873717382091707975765684413044561719677111328071620957065788804300694533319798790268772544998346236460656602021862199931970065869187457286399075792500315278147708472888547199233457704271696646499438715440238231639789562960355714082674239781752841877688695016098774460566567223036936340253703680015045915697622815491470048465572103749
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 64 of the certificate chain of a 2,498-digit prime (187 intermediate primes).

Certified number2,498-digit prime
Certificatedownload
Certificate chainshow step 64 of 187

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009070502739 --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":1100000009070502739},"decimal":true,"detail":2}}'