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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 #1100000008790791118 2,607 digits created 2026-05-05

Value

125795196349559001280841509882194370206837899324456533135359302351896967269341961925399429236991323335817989528112639878453183256136269123965134286928463823146510833977589716821231627122281105589042758796374309479895115143447676860408369747604513050718327929432371338466760317793129642780549276947114979989160426972564496735815469436485473977214951200139426662397450668594854521846387598876345120495419609020269639773498323433476946598237828053573701245145151409554658958152953712315131487645990146645938197486230334185494136177659052801984577984108674962423481688581364263248510440193716046721335632813496340209241976417202334115142753130777544439425167715647328320634734395254309749728308700093170612985037298521502214401399080273296268677092961441103385985871418704387218473846798187756843325146625126962666472089188481002725330055336738174946593903000424746922298541968648697367655933846087817581770748015415506581712018822509692241474909980778358684194440145365597429487765582460967121459939913760753577779206263699785897492075678793670081824789340703774131957466991344688670149900646974242621244159534084103384033641072328012390001535797224229132454742349894257568521248704621370230388934862051513401390891337854770966891279207529815509665355346243836358647644980073160066328660987741216003250745335356816545339346685303518862188660572961270138665504756754861544426644299244351816144032457578743622271007467101621408168297253601622667857790770057224367357939304287089648659987876074576311834425625009976612233790485645539575352184842909091678595454765853646566244109587860068684374517554011472058876829415250701785835304152217477827420180652111564749562599886510513959205889184541875772404767153008870394728718531355369082436500341111386543713233014638419028092283002796837842400459133446844166639066458172536425467861814570013317371325851990254335307137686689997929455910674879776201642922433799513260502792990482309660870169105928943080545889579066621368099037799376941230732884283898251141771752103054106291463655541454308740535249558311791844007567212323190365613725590902699574908899500573514395468246569692028931066825833341837776150800742381832811049453772420577868722061672198741339171079849913496005649383707525193358317204654090138438953896538268510573015381198361729681077159640245179311866162728849618838932188781241005249539786461850368658046225681849406003012250508419601713039054325840017097025419920656899938860069346807461414916850638749350356192080763130768037599250524337027329885234937256516532386137858194806116745907738871832620964570309562113130179172627455911162378073472598143
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 54 of the certificate chain of a 3,331-digit prime (216 intermediate primes).

Certified number3,331-digit prime
Certificatedownload
Certificate chainshow step 54 of 216

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008790791118 --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":1100000008790791118},"decimal":true,"detail":2}}'