12 x 12 = 144
21 x 21 = 441
29 x 29 = 841
As you may have noticed, all these 3 digit square numbers have a 4 as the second digit.
Hope this helped
The largest 3-digit number - not itself a perfect square - is 999. Calculate its square root, round the answer down, then square the answer again.
Not necessarily. Consider 444. The digits are not different. The first and second digits are not multiples of 3 The first digit is not greater than the second digit. In spite of all that, 444 is a 3-digit number
961
The largest 3 digit square number is 961 because 31*31 = 961
trangle
Ans: 462
1346
If one digit is a prime number, that digit must be 2, 3, 5, or 7. If one digit is a square, that digit must be 1, 4, or 9. If one digit is neither a prime number or a square, that digit must be 0, 6, or 8. So, 248 is a possible number. Another possibility is 436. There are other possibilities, as well.
' 100 ' is the square of 10.
729
1
121