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 #1100000009079970261 1,408 digits created 2026-08-12

Value

1721585479400046084503263800823907914963678174078249731023371664659543770011897525943641857482684125770204176104996729202826292788221508217630501877408676365408515956487899993205468974345120132792143573992066786298862281136131853545919526714997643841786348400023245399244601597995237902247947581178434172921768450741916328943009800046273537532581734096437605057237045781206133793432002677850344794679335827855117839970628184596367956898981498420690956951203755954089611743964481572844314664233443457868265681516202685622892359328226334853267737303657429300639404381948122992919730348746988956670822561995000098846125189091838485504889309608498569436195940540104613326558404840717187875772129546944244641102498695315115865958806804487360710647586670264852299777674697183952918288701403853307719862774479931251426777659622918583868267077029623746443778159109110175324770148807643457900335871225238156673942709646559650026644336614812622044587766091365530443688672401126901638293129608694683945396340096181014506410378410207795891370742128320802295286125572310002209179375634290818150839936143222308639058849819815564248092383473624103486419039944429499584167217213998084595390536126030123482718058504923339007876545893401700534962545206957218267180952728192823352242511602486115407466821983101247398172623094591772642695169300805833880120508839271815163743229319040152802174722517459693522780806332980808994123
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 62 of the certificate chain of a 2,167-digit prime (155 intermediate primes).

Certified number2,167-digit prime
Certificatedownload
Certificate chainshow step 62 of 155

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009079970261 --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":1100000009079970261},"decimal":true,"detail":2}}'