12 Days of Christmas
669
Arabic to Roman
177
Divisors
630
Emirp Numbers
483
Evil Numbers
349
Fibonacci
102288449207292227180243219564241
Fizz Buzz
646
Happy Numbers
512
Leap Years
893
590
Morse Decoder
85
Morse Encoder
284
Niven Numbers
402
Odious Numbers
280
Pernicious Numbers
169
Prime Numbers
273
Roman to Arabic
412
Seven Segment
529