Number Gacha

What if every number had a rarity?

Number Gacha turns the hidden beauty of mathematics into a card-pulling experience. Open a pack of 5 and see what the universe deals you — a humble Prime, a glittering Perfect Number, or maybe the legendary Grothendieck's Prime (look it up).

✦ SSR  — Perfect Numbers: 6, 28, 496, 8128

◆ SR   — Fibonacci, Armstrong, Mersenne Prime, Kaprekar, Repdigit

● R    — Prime, Emirp, Happy Number, Palindrome, Perfect Square…

○ N    — Just a number. But hey, every number matters.

Collect points. Unlock better packs. Chase the rarest pulls.

No login. No energy system. Free to play, forever.

Made by a math nerd on parental leave.