>>5602
Actually this
>If f%8 = 0, then:
(n-1) is an even number.
d is even
>If f%8 = 1, then:
(n-1) is divisible by 4.
d is odd
>If f%8 = 2, then:
(n-1) is an odd number.
d is even
>If f%8 = 3, then:
(n-1) is odd
(n-1) is prime (or 9 ?)
d is odd
>If f%8 = 4, then:
(n-1) is even
d is even
>If f%8 = 5, then:
(n-1) % 4 = 2
d is odd
>If f%8 = 6, then:
(n-1) is odd
d is even
>If f%8 = 7, then:
(n-1) is odd
d is odd