12 Days of Christmas
671Arabic to Roman
860
Divisors
434
713
757Emirp Numbers
645Evil Numbers
563
471Fibonacci
427
720
655Fizz Buzz
468
621Happy Numbers
207Leap Years
459Morse Decoder
77Niven Numbers
692Odious Numbers
522Pascalβs Triangle
317Pernicious Numbers
490Poker
256Prime Numbers
677Quine
293Spelling Numbers
857