Catalog:Opened Inscrutable White Gift of the Primes

Opened Inscrutable White Gift of the Primes is a gift accessory that was published to the avatar shop​ on December 7, 2007. Players were given this gift for free if their User ID was a prime number or it could have been purchased for an unknown amount of Robux until it went off-sale. Users who had this item in their inventory on December 23, 2007 were given Failed Proofs of the Riemann Hypothesis. As of December 31, 2018, it has been awarded 5,051 times, purchased 380 times and favorited 454 times.

Appearance
Its design is a white gift with black at the bottom, and a gradient ribbon that goes from white to black, from bottom to top.