Abundant Numbers
864
Abundant Numbers (Long)
837
Collatz
669
Divisors
712
Emirp Numbers
531
Evil Numbers
771
Evil Numbers (Long)
747
Fibonacci
891
Fizz Buzz
499
Happy Numbers
666
Leap Years
582
Niven Numbers
849
Niven Numbers (Long)
551
Odious Numbers
785
Odious Numbers (Long)
776
Ordinal Numbers
808
Pangram Grep
852
Pernicious Numbers
803
Prime Numbers
768
United States
130