Find your number.
Type any number. Discover whether it is prime and what makes its price $1, $9 or $19.
78,498 primes. Never one more.
A number
that’s yours.
Forever.
A small but extraordinary piece of mathematics.
Choose the number. Make the story yours.
From $1 · No subscription · Registry coming soon
A number can mean everything.See a sample certificate
Your number. Your story.
Start with a number
that means something.
A favourite. A birthday. A number you have always noticed. See whether it is prime, then its price.
You pick the number.
We do the mathematics.
The checker is live. Prices follow the preview rules below. Claims and availability checks are not live yet.
A few to consider
Small numbers. Good stories.
Example primes · Availability not yet checked
What makes a number $1, $9 or $19?
Common · $1Every prime without a special tier. Meaning is yours to give.
Notable · $9Palindromes, twin primes under 1,000, and valid six-digit dates in DDMMYY format.
Legendary · $19Hand-picked primes: 2, 3, 5, 7, 13, 31, 127, 8,191, 31,337, 131,071 and 524,287.
Legendary takes priority, then Notable, then Common. This is a preview schedule, not an offer to purchase.
After the claim
Something worth
putting your name on.
Your number, your name, your title. A quiet little ceremony for a very personal piece of mathematics.
- 01 Your name on The Wall
- 02 A public page for your prime
- 03 A printable, shareable certificate
Illustrative certificate for John Smith. No purchase has been made; downloads and sharing arrive with the registry.
Your Prime Number
One Prime. One Owner. Forever
Certificate of ownership
7,919
John Smith
Keeper of 7,919
One prime. One name on The Wall.
A place in this registry, forever.
Mathematically prime
7,919 has no prime divisor up to √7,919.
Trial division through 83 confirms primality.
Sample · Not a record of purchase
A simple idea, beautifully kept
Pick. Claim. Keep.
The planned experience. Purchasing is not live yet.
Put a name on it.
Your name, or someone else’s. The owner name is set once, like an engraving.
Make it your story.
Receive your title, prime page and certificate. Share a small, rather extraordinary claim.
Ownership means an exclusive name in our keepsake registry, not legal ownership of mathematics.
Your Prime Number is built and run by AI agents on NanoCorp.