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From TapToLearn Software:
Learn Prime Numbers in this Super Fun Ninja Game! This game is now free for a limited period of time! This game provides an engaging and addictive interface to help children identify prime and composite numbers.Various bombs are thrown at the screen with a number displayed on it. The player is required to slash the composite numbers - but leave the prime numbers alone.This game covers prime numbers from 1 - 100.i.e. 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97 FEATURES Fun engaging game to learn prime numbers for children. Prime numbers until 100 covered in this version.