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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 #1100000008588885524 2,818 digits created 2026-01-06

Value

1388365513319865162501439187512020667354209587921773852126947121568811654077475920842894925764546222255778568263614334813920135858862963949473183372575322107991973263227446035232621165101510516841118262300443877602428851929825441893930764027191944287719624240554447072570313862537080679000982133039384150216258024441929823508437562070066735879122166553739325310464787130141775517717269211649377683146784885254554461954542675875223406588263916960845602471345614609373115203426860651837204948272372604035908907041158131277166985596821403899789010520267277493639542774710328667367214559570215657682971627063396783299278666350293139952153919663362622538473012305891291963477148523307267721331134041516197317096274256333698060872761778670766634754490439685872730874159084623441563163623396793203250451377478956214591467763959342748687099182496136242319985215383446810878596540356875229195097580762846491069080403227144590864797797065593642858327363297559817776686910673758973534906155428899229843529725767283044076918187062904523181674976940970253937460903382110083561525649277075176722131833714025303626617706559328062621869506960333488776433173335728071096459235290371182319983515260970459610527310948263872416673073986482840042384685476143868406761207512403685306666684336537498122995398512525105160182848472087373724426586688174919137821762433553988804257004517644166536230136572878972254923874547408716157166452050410642686993199366738337610853349315457983775998918506625931147537346824183015636520510234823446267957928889100452613301401555112667130705080288346341062724836839185802847834139905390072779090037640116558925135931450784762326616148992487127684632960468944776406238238242852313291063254022238058428032179567189504465157209377308867726923298825509664600187091397070995926967796596468384369342934362830406459021239642830325717575006197366102999508381596317330176612763447658982808646630823763799793099644569526470139758139546677812164487064111995623156070922195318435042044151892435076470026227819138281720912387976248597507883021588227405995272467522445559749129451029587435860642579714722421725676885524513864054692857464753988737256406354736612210887979115854713651198304632961196211028096594743895144547633045628792922849439919266143448975570923249483742600521682986273471269612559720164743220538021132821431139512844868676749502905091369696910720995258236222930596140137853246219641113001545186253005026626949792095524526875230789703778195735353659775270210216578420448575508171954828102590266626976095422858035692759511557547389613725325770147554428081722876350078495895106754879294025579489268094060224598750122930185988093668845508403489513121675325741751124682610283477215800040220776717497505837770952270666729674901607244827128255765354330305053496855719558542641820110316225095811191679751709863
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 41 of the certificate chain of a 3,506-digit prime (205 intermediate primes).

Certified number3,506-digit prime
Certificatedownload
Certificate chainshow step 41 of 205

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008588885524 --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":1100000008588885524},"decimal":true,"detail":2}}'