24 Game
11
Abundant Numbers
589
Abundant Numbers (Long)
356
Alphabetic Numbers
97
Card Number Validation
266
Collatz
558
Day of Week
533
Divisors
598
Emirp Numbers
301
Fibonacci
638
Fizz Buzz
668
Happy Numbers
184
Happy Numbers (Long)
277
Leap Years
595
Leyland Numbers
185
Prime Numbers (Long)
542
United States
87