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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 #1100000009066857770 1,051 digits created 2026-08-10

Value

6440091538875010167977640890497851980119636134170255172794001325441175784442089591822933737432956940861241219730509813934043587723859632060917140171339451964237391913942470000228960945894126644981896226539263410303507275855203767546490585781066584666120615074557282933940828997003068659365097038040698257541284868147807266362960467524673403019736022711471079171415144115149797611129374819128343568200070664594658613643808906294089907987250988897164702647866681785503046594196075529469567024992346983440951360803714881825549062348789937994930096128985549113955576616842017133385817139409842169695781500749462235362887654030437359703072202321170790561611187843190801663307814344313098812359005525924730192494300828746431606450476124017547253021472933263535743104514849303632005011758750536335560412396034553866737889579326616860304827735314355133931192405702730971078433832622269785246875151915025841075036123980050440538725813808470862787984929786314040086140746671498350101251710839403758482392429620200250275095884412026282546431538624428143164959237
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 57 of the certificate chain of a 1,727-digit prime (148 intermediate primes).

Certified number1,727-digit prime
Certificatedownload
Certificate chainshow step 57 of 148

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009066857770 --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":1100000009066857770},"decimal":true,"detail":2}}'