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Keep Prime Numbers
About Keep Prime Numbers
Remove all the blocks to make the composite number going out but keep the prime number. Click or tap the unused block to drop the composite numbers.
How to Play
Click on the numbers that are composite to clear them from the board. Do not select the primes as they must stay on the screen. Apply your knowledge of prime and composite numbers to thoughtfully choose which numbers to eliminate. Progress by removing all composite numbers from each level. Pay attention to the challenge as you progress through the levels. Work on your math skills to improve your score.
