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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 #1100000008680399941 1,410 digits created 2026-03-12

Value

835206655743864676366927151070514612936599256773176336894302190839635316525089471127070683953094132467469666108255083645317031130256043545339001336690140563003217933414872665621683603196109789451136585072016853714434901276355200663831472178474371280489997325785080410755339069650803956809885327954468641082402737695566452161472143516548512543482228740917158834927840609891462185904614881880753009958954417940012975797492309413550941454929879946607153193110295505622736571910024583119108029451835321310753113411643865247418507165126313890839859600902811875499744867944989178104037565460322763917910496148586525943883074259832557216832613892582442971174082111921215242074534055776906149520700621049687427407444046611824002250298898591523642424870250860423444773551451236495237548196369566669271291948830694068158337881169088774879075672354748733572265157725988064599582729425294025965377625777077955450775990170200955261096053151128207125093146782687489795190488289583511816226089947481848394883460273180611586321280787761086290082613001850984312602111327504154476456676512873914022255027506905543514428202265142256961256570321879334796596478385547796384915778873973572671852965575351581692729100251876346288409559004062243263409623291153307051825356859140333361912715172386837316940027510927167407058043217114633287231544923356792801762122782922941064791130065689215207711246445493591191325185723556191922133831
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 61 of the certificate chain of a 2,029-digit prime (206 intermediate primes).

Certified number2,029-digit prime
Certificatedownload
Certificate chainshow step 61 of 206

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008680399941 --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":1100000008680399941},"decimal":true,"detail":2}}'