12 Days of Christmas
900
99 Bottles of Beer
663
Abundant Numbers
761
Abundant Numbers (Long)
916
Arabic to Roman
681
Arithmetic Numbers
844
Ascending Primes
260
Catalan Numbers
702
Collatz
900
Divisors
984
Evil Numbers (Long)
799
Fibonacci
934
Fizz Buzz
945
Happy Numbers
682
Happy Numbers (Long)
743
ISBN
625
Prime Numbers
701