Abundant Numbers
862
Abundant Numbers (Long)
834
Collatz
667
Divisors
709
Emirp Numbers
529
Evil Numbers
770
Evil Numbers (Long)
747
Fibonacci
889
Fizz Buzz
500
Happy Numbers
665
Leap Years
581
Niven Numbers
848
Niven Numbers (Long)
550
Odious Numbers
784
Odious Numbers (Long)
775
Ordinal Numbers
813
Pangram Grep
852
Pernicious Numbers
801
Prime Numbers
767
United States
130