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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 #1100000009067906576 2,018 digits created 2026-08-10

Value

17854848656677554633916545005028901725205920349100325988003819908234129729488963920358113529311955110393224238874556256131450402662837894109511201238913047192574723198229052473666230132288208023552077035408046137584682410613298507222610442331098213455496591041329523295522216646156715445263114254714087532798272281711927176476707635641510729349378266951181840986145097865965465093848713554037030612519965956486074030118742822050631411998859265490632990036817643434190130303247139976646756349612776880249450889231491460251084360654521086782584002361566315284505789916830072627019757824584120597235215549506780888910624103289477529387450701265605565241890756974113288672267146335615207903723744004149265800722173001712535585247506258587878626687888335640838910126901782381027000938714770943683354617429855130084784920535246982278730752141910797194984908862917641012466172645128073267290786179663187046641919936021434438002002455904779790844489731130995491506808083810952957860996117699428175431981834648395015053801369648172661554648469326367357887769401687646114815895966226939801466619179907975664542497078222638928607763270278678950790335377991533017417050077292208384614782783620027421113839184533918946919956128674674041926431920489669499244376830639384784273801730893041888821158037471100225182378318221496736728433249161792991026766572989063901367184860644616337818002895052576657841182359966232312003356151457258156545804323870034404951367096567625065549051271206508947561529898423058055876903826806753406166729030416876722060320450930304433550985306727117522646740200951410093179361894623165208157653377842549030035558813972555135771894304401692510111357336881602139997650619032442090471023562239982637472893241435875310635581011810385136950177834580312941745762687131494492131713023021912472878932241541631711675769937998026660293364793614186302194099804120763441142389704416541128230226451094164850030217969715587188967114320004463772753694755071463569340489576811991565358569530175379009184024412906041601863
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 71 of the certificate chain of a 2,927-digit prime (222 intermediate primes).

Certified number2,927-digit prime
Certificatedownload
Certificate chainshow step 71 of 222

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009067906576 --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":1100000009067906576},"decimal":true,"detail":2}}'