12 Days of Christmas
354
Arabic to Roman
168
Divisors
625
Emirp Numbers
424
Evil Numbers
348
Fibonacci
102282448205291226177241219470239
Fizz Buzz
643
Happy Numbers
419
Leap Years
867
573
Morse Decoder
107
Morse Encoder
229
Niven Numbers
397
Odious Numbers
279
Pernicious Numbers
167
Prime Numbers
273
Roman to Arabic
408
Seven Segment
463