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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 #1100000006985328504 2,043 digits created 2024-04-21

Value

238603399337903879520282822556728853818331413043462653982632719804367189932923103227323480087050242076583483594184509622588515400766631659676945265677735849475892737284785369882655547187464580076772736875911240491474969975270190146550436951763038740745355587129298365882706904398554557480583535807735385688957899271118848163599188591946432905283560718633791784466574965626834730175299551721941923496630136951432755697737823144970327410098059732647242790905876699071968810274375029680322430211936507659398631820312816849306595493952116451356149385105429561596004561127119199987030275247711336723197963817475079651765856930229354008451146783415458417537140466726007635959305947380249237646620331015904764048994743675235661440092270020851857998976766023069278269641018575718401184098367679889685230306803813586835674215842114508415439723910554397836042369319833901311696919745453185379411065892054124244540190600849905555596260473172382362829393957275235281660728890211364979117215486949665985228764894452040625775602805850392086794098878387126708641146168558327880795914941483354057272001508878989038778326105122995770924786154579531204581416476693858645947845765021574035859340428940110424845944609891903818817725420350797128577504420290587884248057088216954938845122939209017197674770565829876521584577167447490085573926283029241260751662166597554064280072775962706190693072419473057916807865571252397778191222062019594445069995452367070853757649693024429692076872401036166757114039197062108557934951108221702322173536935409983030954854798164701312351831185232957043644241324450317845821418008317876700768213335027892102221449882331128463523345163713199915401420642703099993146351280142280200323560189601440844294166060976195818171748264795433988928404756047826409169996682465087856524260831840961206235226884997386317946835131789548340893513999231381136213894063199904680826301630291143269661880829412520012766582418890091529325069664626672243654630577560977456642451486656546608760106873295751530460024005423104322881699589098513830429414143
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 84 of the certificate chain of a 2,867-digit prime (317 intermediate primes).

Certified number2,867-digit prime
Certificatedownload
Certificate chainshow step 84 of 317

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000006985328504 --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":1100000006985328504},"decimal":true,"detail":2}}'