Hortaros
Abundant Numbers
537
Abundant Numbers (Long)
646
Arabic to Roman
496
Collatz
850
Divisors
877
Fibonacci
947
Fizz Buzz
967
Foo Fizz Buzz Bar
988
Fractions
695
Niven Numbers
721
Number Spiral
435
Pernicious Numbers
690
Prime Numbers (Long)
530
Quine
969
Roman to Arabic
632
√2
710