Rikeigames Prime Number Speed 1st Edition Arithmetic Mathematics Calculation Ability University of Tokyo Card Game Board Game

---------------------------------------------------------------------- [Devised by a University of Tokyo student] Prime Number Speed is a game where you factorize a given number into prime factors one after another using the prime numbers in your hand. You can have fun acquiring the calculation skills necessary for arithmetic and mathematics. [Train your calculation skills] Through short, 5-minute battles and heated real-time battles, your calculations will quickly become faster as you play! [You can play according to your level] A total of 72 types of composite numbers are included, from level 1 for children to level 4 for enthusiasts. This is a game that can be enjoyed by people of all ages. [Product Overview] Recommended age: 10 years old and up, Play time: 5-15 minutes, Number of players: 2 people [Contents] 36 prime number cards (18 cards x 2 people), 72 composite number cards, 2 end cards (1 card x 2 people), 1 manual, 1 prime factorization table