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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 #1100000008684836720 1,794 digits created 2026-03-14

Value

614878092121740350871678556025008450525820735550494789733105883977173399296698889178016599793525540437915364964027165923654688613078356899923811943730816035525289397370941383564626728215889085092396389301143262215717951871830052561266498916945863507418445898817137123953891515416418596894735916393159496116836553158370854204502865107802479860738754291642401128846186173481042717456003044550343418361888643072946100837916626215409390386815803096210663003423059264036177488247531296022053708827065924445930511054732312119500171208489073525444491113210797781307432141866905033376485925197846094600853077033827051131552472228643407670241346518733827973314519588796881819907878509573933084444153454105344810124067366736483071460977957148052914959913632168692261047961157990919547577204558923535863726864245192647421790741290951167519498123429661200316650420361734663632889721448419028700028653334945639218594213856365902663477231849427689145513414898299661635081318679905926330873508780856892016503173857096553428560242522463129518722137051182073777759556457436100968357028838483468724405289898029442254630505391560918356015451742981068637079184412921608781095217026938742342186229725845444061737644934316338333479743365322997158999085647311206507973840961997826440743146378501832784043066296858129124869920514530264048661394226426842202302060545779544743660862596023519017318253214353685830584458177615956005180358520002970411526106393498150348676448217882795048480116967231097091090937500494146014818696048978628356577156703257392392596885523770253402518526725904114096785609704823740439900698172824390217076878550972063426523832733177534080214806721499449839838210196064201894113063051678071822595698417958934641905653753512656756952186172760236025235641181532501558494217746869920153976633376421
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 85 of the certificate chain of a 2,885-digit prime (223 intermediate primes).

Certified number2,885-digit prime
Certificatedownload
Certificate chainshow step 85 of 223

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008684836720 --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":1100000008684836720},"decimal":true,"detail":2}}'