We find a real prime number tied to your name and make it officially yours — with a certificate, the math behind it, and a story to tell. A completely unique gift for the curious mind in your life.
Need more than one? Bulk orders →
Frame it. Gift it. Brag about it at parties.
Somewhere in the infinite ocean of numbers, there is one that has been waiting for you since the beginning of time. It has never been claimed. Never been written down. Never been whispered to another soul. Until now.
Your prime is not random — it's mathematically generated from your name. Always the same prime, always unique to you.
Not one in a million. Not one in a billion. One in infinity. Your prime has been patiently existing since mathematics began.
A printable certificate you can frame and hang. Your name, your number, your proof of mathematical ownership.
Prime numbers are the atoms of arithmetic. Now one of them has your name on it. Try not to brag at dinner parties.
Every prime is generated from a deterministic algorithm and recorded in a permanent registry. Your prime can be verified forever, shared with anyone you choose, and will stand as long as mathematics itself.
Your prime isn't stored on a sticky note. It lives in a cryptographically verified registry that would make a notary weep with joy.
Stuck on what to get the person who has everything? They don't have a prime number. Problem solved.
Nothing turns "ugh, math" into "wait, that's actually cool" faster than telling a student they own a prime.
Your prime existed before stars, before planets, before the Big Bang. You're just the first person smart enough to claim it.
Everything included with your prime number.
Personalized prime number
Derived from your name, verified by algorithm
Printable certificate (PDF)
Frame it, gift it, hide it in a vault
Permanent registry entry
Your name in mathematical history
Shareable link
Show it off or keep it mysterious
Algorithm verification page
Prove your prime number is truly prime
Spoiler: probably someone you know.
Finally, something to go next to their signed copy of Euclid's Elements. They'll love you forever. Which, coincidentally, is exactly how long a prime stays prime.
Nothing says "I make math fun" like gifting a student their very own prime. Instant legend status in the faculty lounge.
Forget gift cards. This is a gift number. And unlike socks, it never wears out.
They have everything. They want nothing. But they definitely don't have a prime number. Checkmate.
Turn screen time into math time. A certificate for their wall and a universe of numbers to explore. Warning: may cause spontaneous interest in homework.
Roses wilt. Chocolate melts. A prime number? That's forever. Literally. We did the math.
Know someone who deserves a prime? See how little it costs ↓
Real primes. Real reactions.
"
HA! I love this! I got one for my father in law who's 84th bday is coming up. I was thinking he is in the PRIME of his life!
Lucy
gifted to her father-in-law
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My wife has a PhD in mathematics. I've been trying to impress her for 11 years. This finally worked.
Marcus
birthday gift for his wife
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I'm a 7th grade math teacher and I got one for every student on the last day of school. The kid who said math was boring now has it framed above his desk.
Priya
end-of-year gift for her class
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Bought it for a coworker who was retiring after 40 years. The certificate came out beautifully. He cried a little. So did I, honestly.
Tom
retirement gift for a colleague
One prime. One certificate. Yours forever.
$11
Less than a coffee and a pastry. Lasts longer than the sun.
Need more than one? Bulk orders →
We use AI to find your prime! Just kidding—we wouldn't ask a dictionary to do a calculator's job. While chatbots might hallucinate that 91 is prime (it's 7 × 13), we use 100% organic algorithms to verify every digit of your number.
Why we don't use AI