Question

is 124 divisible by 9

Answer 1

no, if 124 isnt divisible by 3, then it isnt divisible by its multiples. 6 9 12 15 18, etc.

Answer 2

10 = 1 mod 9

10^n = 1^n mod 9

[1(10)^2 + 2(10)^1 + 4] (mod 9)

[1(1)^2 + 2(1)^1 + 4] (mod 9)

[1 + 2 + 4] (mod 9)

7 (mod 9), since its not 0 mod 9 then i doubt it

Answer 3

thanks

Answer 4

12 is divisible by 3, but not by 9. so your assumption is flawed.

Answer 5

or my reading of it is off :)