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
Mouse click Touch
Can I play Keep Prime Numbers for free at school?
Yes — every game on ClassFrog is 100% free, no downloads, and loads on Chromebooks. If your school blocks ClassFrog, try the tab cloaker to disguise this site.
