factordbrpc · fdb
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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 #1100000009072857108 1,748 digits created 2026-08-11

Value

47793131845974654567523638933684630991412697950874533914964203859088917366110992991278796779711403806397410217361142168603533092947416818230587870447548296329716555148439474708884741307884102699417636634436149084619507295100487836855889965464418411674023456147881456670391012234863432885686405724420457155441960876019671131113284529655737562825229755222718895523287805279218965485622818208071826494084468548315106876797178128576935309546629191224877743987734382425218638240700671187025115438550408578131917561816741483873129363200098662603836016490557818436646744791439147960351281538749752011933357233577703659049127673576798565758449419620905182466195673830968275530362952252121172990241227810767229248236129342734992685136687828514998131947436329138831133670033846092601569684458289468517724392128881761775819528878869997173075248514981652741595901592983597073194938210092976625620396493393320324178167603169754057603669765448902624956904583488168487707638409875302914135703821224016872677427156304467156777802730517504628106879949222540495587574276087285260293715930626239215896269644907431583776703296868508822163006425374486349828170909858278364425158432124836306914869387006019299678402894478081810079841578794149644785020303072326870342992200500233572407863388663117559647918663841137162387548161066374531663309772420570608437744789837384206944152767078247410562664283920860564842774829370882208674398433265612469501328891327006695407035785900113194283798944098002743654782741339250009267757854316595884841402341780371432539494891091592778977504394222104783594975250173561653845722787878363345453011238155393652321251645991399566396232921099105200902469152459942358413948614507799767238352307233898990017285518930902171471088010096464175177
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 20 of the certificate chain of a 2,006-digit prime (156 intermediate primes).

Certified number2,006-digit prime
Certificatedownload
Certificate chainshow step 20 of 156

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009072857108 --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":1100000009072857108},"decimal":true,"detail":2}}'