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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 #1100000008678210499 1,752 digits created 2026-03-11

Value

776699185691438348272980147506988649781065451874424052859684130106061498466603700204333866120468566234017339081509510699122122635348254655400128937161893242972469273914221411543590643434576696636874714274703796046907980002258095628406469392628441861499242803587989095373150613767243200258415856435632267918347989562564082389207446571813218644351628985563830424017752893129641450505371094007186284935518281945214425503737731882407684533383072857359712104437395787900390811672290691230797612776771302229986523679558022504421801297665908437186506553153053646469480950076131278869133245971319527963256060727919699063464487069633939374516119857948214674239659489464406589311570525276164535524149844908573837700936809376778545341765937491270492160980644214888330810815680056815719809611531962790480404375447859271896871053355805630619826763339228175377174754090511132544094142529357443099817047339989079882721876884347109492083734737137128932669472112886191370014368063681381278257171287176122603619336069985287749209496505445099170822352078097049605223067619879309091315038647544178653283877177873484997008284330366452078328473004904376346087493614799231157495570286005384637089134273404244574011462656900628690884793441759487110608300302223287312948165789993351470793596860829374374609349463159134665928411317512215283111684760542904233572622823544362046755207732622819514824466471069387105507795970849787683147957190218372651009637010568537936405451839150710536907804281035986932741435090880630157495555890348575859962304953077310480410478653243700237790615565253915282594960986006438663999627999734675974891125877112552722283803916278086251204188748011465517699589161274520998478221342729243204727014334345986778620286236732623495352345129675427597371291
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 9 of the certificate chain of a 1,843-digit prime (185 intermediate primes).

Certified number1,843-digit prime
Certificatedownload
Certificate chainshow step 9 of 185

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008678210499 --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":1100000008678210499},"decimal":true,"detail":2}}'