What is a unique prime?

A unique prime number is a prime number whose reciprocal is a repeating decimal of unique period. For example, the prime number 3 has the reciprocal 1/3 and therefore the repeating decimal 0.3333... or period 1. It is the only prime number with a period of 1 which makes it unique. The prime number 11's reciprocal is 0.090909..., which is period 2. The reciprocal of the prime 37 is 0.027027027..., or period 3.

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How long will it take to receive my order?

It takes 2-7 business days to create apparel products and 2-5 business days for non-apparel products

We offer standard shipping across the U.S. which generally takes anywhere between 3-5 business days depending on where you're located.

Estimated Delivery
You get your order after we fulfill and ship.


What's your return/exchange policy?

If you are not 100% satisfied with your purchase from Unique Primes you can return your item(s) for a full refund (minus shipping) within 30 days of purchase. Returns must be unworn and in the state you received them. Once returns are received at the address we provide you in the email, we will process a refund for the purchase price and initial shipping charges. The customer is responsible for return shipping. Please ship items back with tracking number so we can both ensure the product(s) have been received.

Refunds will take approximately 5-10 business days to reflect on your billing statement once they are processed on our end after the product(s) are received.

To initiate a return or exchange, please contact us at: support@uniqueprimes.com to get the process started.