A simple game to evaluate your skills at testing whether a number is prime or composite. Runs even on Android Gingerbread. A number which is divisible by only itself and one is called a prime number. Primes and composites together form the system of natural numbers. The number 1 is neither prime nor composite. Minus marks for wrong answer. You can change the upper limit of numbers to be tested from 100 to 1000 or upto 10000. V. Simple game less than 300kb No permissions required.

A simple game to evaluate your skills at testing whether a number is prime or composite. Runs even on Android Gingerbread. A number which is divisible by only itself and one is called a prime number. Primes and composites together form the system of natural numbers. The number 1 is neither prime nor composite. Minus marks for wrong answer. You can change the upper limit of numbers to be tested from 100 to 1000 or upto 10000. V. Simple game less than 300kb No permissions required.