When a perfect square is divided by 3, the possible remainders are 0 or 1. This is because any integer can be expressed in one of three forms modulo 3: 0, 1, or 2. Squaring these forms gives the results: (0^2 \equiv 0 \mod 3), (1^2 \equiv 1 \mod 3), and (2^2 \equiv 1 \mod 3). Thus, perfect squares can only yield remainders of 0 or 1 when divided by 3.
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
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
13.3333
30.3333
0.75
120.6667
2.5
234.75