Abundant Numbers
709
Abundant Numbers (Long)
701
Arabic to Roman
364
Arithmetic Numbers
725
Billiards
621
Christmas Trees
621
Collatz
684817
Cubes
368
Diamonds
403
Divisors
667720
Evil Numbers
648
Evil Numbers (Long)
636
Fibonacci
742873
Fizz Buzz
576
Leap Years
740833
Niven Numbers
687
Niven Numbers (Long)
672
Number Spiral
387
Odious Numbers
660
Odious Numbers (Long)
673
Pascal’s Triangle
544
Prime Numbers
664
Prime Numbers (Long)
625
Sierpiński Triangle
229
Tongue-twisters
516