You can put this solution on YOUR website! abc is the 3 digit number
100a+10b+c=3 digit number
c=3b
a can = 2,4,6,or 8 4 is the only square number choice
the squares are as follows:
1, 4,9,16...oops cant be 16 or higher they are more than a single digit
is my best guess for the number
because
first digit is even and a square
middle digit is a square
last digit is 3 times the middle digit