12 Days of Christmas
79
Abundant Numbers
676
Card Number Validation
472
Collatz
688
Day of Week
624
Evil Numbers
740
Evil Numbers (Long)
725
Fibonacci
600
Fizz Buzz
553
Fractions
569
Leap Years
692
Niven Numbers
704
Niven Numbers (Long)
767
Odious Numbers
685
Odious Numbers (Long)
673
Prime Numbers
552
Prime Numbers (Long)
585
π
134361