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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 #1100000009055089162 2,092 digits created 2026-08-08

Value

1572251534874709667363805300029528737854969807445406024826654845364802802922039152829803670851035745902992709539018365059167550513332784905746308020009088088602756353842691703397768439984581283422650635296447262517988819861715457348092440762484798154511808598482829050797255820469973040647646005252282196900914179889559330066945516013167804329901438121236073049156325031281005998769952088557529301758294206548674061463193817896868035157063886648768555617375644864596790436492528624768100364233917158069602382623341592658227380175423772628065211521329124715632770050617114751846585098201547638514211276327411838238215991509496036775371704770242620744941926648590502732713921252076978208335251186607118144254305107262952131677472678877361345204462287033935649163509942350789051455877822026013232938046250068196135253025317561448883437064574323201956714290800917830500613520746509221829327036156126571794442838149308871365987379582416183098327498459384348359812407091871968306884298364554384890522124796904824034691405175390252107546713557977550270303981773629362812313936682947178504498169975017819126621529945749752220926096372282593720799028076115292855386811707939243125062328193231501354031639749963508042367030462597059587109801016589532270322915058258477615286828151471776168256056717815662214163183401800400577751064800635081076333433929381491218345506991937845276572259319733257851578053265108831520161591295610770145742026853298153007910913133261878991134954188066836144789657668029430897628438785748509902645572740237286724660831178608974331025458086158478236973734299458837415861324543610279181920221969443429313811448861461329027784388553168069436582572632438027565444999364169163814199743942030470671729612430231873544050639303238062700831290742747426164681532464561078597913094914650286522120110872036672416553832811436587219703793007664478676139551559282728076495927488148216211488329256983862616269621192118245122675625144361327029491610960898648783527740653674703460962435586140505777648359981129025823715633328640730318376951725468600254545265768498148691496109830149335866183
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 39 of the certificate chain of a 2,523-digit prime (197 intermediate primes).

Certified number2,523-digit prime
Certificatedownload
Certificate chainshow step 39 of 197

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009055089162 --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":1100000009055089162},"decimal":true,"detail":2}}'