12 Days of Christmas
77
Abundant Numbers
676
Card Number Validation
472
Collatz
664
Day of Week
625
Evil Numbers
740
Evil Numbers (Long)
725
Fibonacci
601
Fizz Buzz
552
Fractions
568
Leap Years
693
Niven Numbers
704
Niven Numbers (Long)
768
Odious Numbers
685
Odious Numbers (Long)
673
Prime Numbers
552
Prime Numbers (Long)
586
π
134361