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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 #1100000009080351756 1,188 digits created 2026-08-13

Value

301885896603658388662019307079264917291897167123121614970331198465214170742563482214305530813397387698562329941732122993637068374673290621017598330796428166621929122728481142373387772405325914836129363207778368928959859626771531280785194276973349661199672276591164229349385984975916144641558535919187641804882539081685237746265663565106087285234336014556281659811564080331479153094641476004836965774433403881914098190172275794984102992249506734365216188102518515017220960940024275965438578418382862222788733556641572323274291899890708626439281828898321677049640922466884618183549235847673189398350461069808523910449257484355092427647137726107220952406047527783217244036398735017081199322987177647383427432916921842471327083875781346355258311306703480896891073553857625307122122411794140781349678160133629567212382778416608255912396002899846841724098900410696461264160450809353685672863102307161844761497164136929171772833070458542837976642271711433484139176733083930915870738557293956641651069509829433987481004585718991015199503734302242475955528840103108390898181569586205589494670449133014496513189943915449911683380209249885686828956984842900704956877288965407608745166987004171459821
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 54 of the certificate chain of a 1,870-digit prime (147 intermediate primes).

Certified number1,870-digit prime
Certificatedownload
Certificate chainshow step 54 of 147

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009080351756 --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":1100000009080351756},"decimal":true,"detail":2}}'