12 Days of Christmas
663
Arabic to Roman
847
Divisors
413701738
Emirp Numbers
624
Evil Numbers
553451
Fibonacci
411710642
Fizz Buzz
454
616
Happy Numbers
200
Leap Years
449
Morse Decoder
75
Niven Numbers
678
Odious Numbers
500
Pascal’s Triangle
305
Pernicious Numbers
473
Poker
242
Prime Numbers
653
Quine
280
Spelling Numbers
857