12 Days of Christmas
900
99 Bottles of Beer
662
Abundant Numbers
761
Abundant Numbers (Long)
916
Arabic to Roman
680
Arithmetic Numbers
843
Ascending Primes
260
Catalan Numbers
701
Collatz
899
Divisors
984
Evil Numbers (Long)
798
Fibonacci
934
Fizz Buzz
944
Happy Numbers
682
Happy Numbers (Long)
743
ISBN
625
Prime Numbers
700