Wat will be the remainder when
21^3+22^3+23^3+24^3 is divided by 90..
Hello, cUe?!
I assume we aren't allowed calculators . . .
What is remainder when is divided by 90 ?
Factor: .
This is: . . .
. . . . . . . . . . . .
. . . . . . . . . . . .
. . . . . . . . . . . .
Therefore: is a multiple of 90 . . . The remainder is 0.