12 Days of Christmas
671
Arabic to Roman
860
Divisors
434713757
Emirp Numbers
645
Evil Numbers
563471
Fibonacci
427720655
Fizz Buzz
468
621
Happy Numbers
207
Leap Years
459
Morse Decoder
77
Niven Numbers
692
Odious Numbers
522
Pascal’s Triangle
317
Pernicious Numbers
490
Poker
250
Prime Numbers
677
Quine
293
Spelling Numbers
857