Abundant Numbers
288
Abundant Numbers (Long)
348
Arabic to Roman
458
Arithmetic Numbers
378
Catalan Numbers
436
Collatz
694
Day of Week
833
Divisors
449
Fibonacci
643
Fizz Buzz
464
Foo Fizz Buzz Bar
477
Fractions
549
ISBN
280
583
Jacobi Symbol
485
Leap Years
597
Leyland Numbers
343
ln 2
530
Niven Numbers
550
Pernicious Numbers
471
Pernicious Numbers (Long)
542
Prime Numbers
444
Prime Numbers (Long)
478
π
178
𝑒
706