28
A square number can only yield specific remainders when divided by 3. When a number ( n ) is divided by 3, it can have a remainder of 0, 1, or 2. The possible square results are ( 0^2 \equiv 0 ), ( 1^2 \equiv 1 ), and ( 2^2 \equiv 1 ) (mod 3). Thus, the only possible remainders when dividing a square number by 3 are 0 or 1, never 2.
19.3333
0.6667
30.3333
28.6667
3
28
19.3333
0.6667
30.3333
13.3333
0.75
120.6667
2.5
234.75
Quotient of 8 and remainder of 3.