Abundant Numbers
284
Abundant Numbers (Long)
340
Arabic to Roman
445
Arithmetic Numbers
382
Catalan Numbers
424
Collatz
680
Day of Week
799
Divisors
442
Fibonacci
634
Fizz Buzz
461
Foo Fizz Buzz Bar
470
Fractions
462
ISBN
253565
Jacobi Symbol
463
Leap Years
589
Leyland Numbers
333
ln 2
513
Niven Numbers
541
Pernicious Numbers
460
Pernicious Numbers (Long)
526
Prime Numbers
436
Prime Numbers (Long)
465
π
174
𝑒
690