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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 #1100000008677877497 1,444 digits created 2026-03-11

Value

1409438478317553699706217759168285818231754014544249634207893040831036329689508984128781176573356571577300177643610636658562771755542856658428577478626928507618491066901262910314925612673385486508183501062890837759817926125127614674697392768970159143498652863556632916340668774706052368184239654753854180752938796776481931793415970304610397829557767729294486666535118549030516949890215664440467652701908287190473645710994505667615862130763460562806533533487019846490886370823808178130991073025827679679437464925821597461267601353779262029686249285720387064568174452281383378471983196946050853256717204351337656945886848407932100674859925438753455246217651119711540583403092082044174124267226769285556010187206993824787461084850292681644499581947492850929316635768723740278016165286456331301677378794133470086598310504036207782500929767377479274693783195441449706392161189571321584671483100558926076172148216525347099827456330769081566778670431011034996829629957099170376842412001374451869363422723585818012879166090066791226702773944459580757929938299933268711240941870936992170249478073484123918979656512440330158824528682508695692075063189690684209627240504093085024418705524208092490366896723178336607273268188708184087340936337372595517013152004307929440850561424199567504512354326688656709631319806281829196619996048030915489004639659009392158806809007333248002128353773579814875257871816174293482688944326661517613760951620016934641650097
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 29 of the certificate chain of a 1,740-digit prime (182 intermediate primes).

Certified number1,740-digit prime
Certificatedownload
Certificate chainshow step 29 of 182

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008677877497 --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":1100000008677877497},"decimal":true,"detail":2}}'