No it is not.
Yes, 258 is divisible by 6, since 43 x 6 = 258
Yes, 258 / 2 = 129
No.
No, it is not.
No.
Yes.Yes.Yes.Yes.
Divisible by 5
YES; 3870/15= 258
Yes. 516 / 2 = 258
Not in a whole number, but in a decimal. It's 32.25.
86. Along with 172, 258, 344, 430, ...