24 Game
21
Abundant Numbers
594
Abundant Numbers (Long)
359
Alphabetic Numbers
120
Card Number Validation
266
Collatz
563
Day of Week
533
Divisors
598
Emirp Numbers
480
Fibonacci
638
Fizz Buzz
673
Happy Numbers
277
Happy Numbers (Long)
278
Leap Years
597
Leyland Numbers
217
Prime Numbers (Long)
542
United States
93