There are (not counting 1) three square numbers between 1 and 20.
1 and 4
The square numbers between 1 and 20 are 1,4,9 and 16.
There is not a number that is a perfect square and perfect cube between 1 and 25.There is not a number that is a perfect square and perfect cube between 1 and 25.There is not a number that is a perfect square and perfect cube between 1 and 25.There is not a number that is a perfect square and perfect cube between 1 and 25.
All whole numbers between 1 and 400 (=20 square).
There is no perfect square number between 1 and 4. On the other hand, every number is a square - or its square roots.
Gun n
There are 31 perfect square numbers between 1 and 1000 (including 1).
Because the Square Root of negative 1 = i (The imaginary square root of negative 1.) and where if the square root of one number and of another number are multiplied together, the answer is equal to the square root of the two numbers combined. (Square root of 8 times the square root of 5 equals the square root of 40.) So... √(-20) =√20×√(-1) =√4×√5×i =2i(√5) The answer is 2i times the square root of 5. square root (-20) = square root (-1) x square root (20) square root (-20) = i x 4.47213595 square root (-20) = 4.47213595 i
21
I think this is one for trial and error. Are you counting 1 as a factor?
Number. Number Squared0149162536496481100121141