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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 #1100000004874749287 2,211 digits created 2023-10-25

Value

394762085970671125685757567534373954116755565691196814091541402857373536704149826491425104145310273547533664368313631087404207688438445679796300124469162270609594655520154559980438512198692245768860134212221645094207838568485559028245505334238685523540109560253981560708249949988771137881562952523277912071426771219998363977971256744249477451104518878036411018188489778098021404767399377708841019960266821605977244957130631738809099248413529862586731317238563695029510960294640335847446199308238760891320155884196866512330154918204636333646255407853048646395913338003440194901508855090116743993954425092420192085594996039379298154586255015474517899215496512359688500683137789508623596532823568396949025469185523993476566110790431177550732491539209527553603488101813449540517573163650136629772858496511743322702475165734162111268953922816326723141604349351579386922037161718207705592764378594277828194769786760696605006109472956040340542876255447424150003971838393680485423672622739795647595883898225286451558631227802288334957426257486564658343075573909487673321226116553166469350308087766345448588071731174491313102311423914651688586670612881299310002372590746723924676792777397466674160227508694393886242470049239875090580013830542935490079387513461785694730601090786460404601654575461915293557259945521219134148510715087617790054999417142239661077009408954563139910890644220223059834898191643253334838907751524335140124374792672978967756864630487313756853806841601575210301567745191248816889512314066955286208018647147930502738652248952462500180524096449177692204949688014035937473927601053480467273309282974212078007448700347758594884574893375273136964312370124232666255438504392613717165700991426781675630661792816485238676734484511402506434296806052575181895662911345675958794118234650986910157543323165002931474730516529347422132171069296759316164949403950661602315541137175061004147855315516333333346949462298408742738060941100763098857972927389939058072768976491343522931898706882981558663219040024784943028689250587029213148091478433568757156479039902851946501025391500718536175163075127003173535124520157263780948718758832950634563295823753829458377752497859967221070336855622809656554501749103270833
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 33 of the certificate chain of a 2,510-digit prime (346 intermediate primes).

Certified number2,510-digit prime
Certificatedownload
Certificate chainshow step 33 of 346

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000004874749287 --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":1100000004874749287},"decimal":true,"detail":2}}'