WARNING: using a number that is greater than a million (n > 1000000) to a perfect number checker can cause the project very lag or even unresponsive due to how complicate to check perfect number. Number checkers are those checkers can check what's type of number. There are 8 current working number checkers: prime, square, cube, perfect, fibonacci, palindrome, lucas, happy. There are very useful for your projects, projects are like complex, mathematic, or whatever, it's your creative of using one or more of those checkers. Explaination for every number checkers are inside the project, click "See inside" button, then go to "Checkers (Put this sprite into your backpack if you want)" sprite to see all number checkers with explaination. Enjoy put one or more of those checkers to your backpack if you want WITH credit! (@ReallySopa) All my checkers and scripts are belong made by @ReallySopa, stealing one or more of those checkers are PROBITHED. Love and favorite this project if you found it interesting! Follow @ReallySopa for more amazing projects!