The square numbers between 1 and 20 are 1,4,9 and 16.
All whole numbers between 1 and 400 (=20 square).
There are (not counting 1) three square numbers between 1 and 20.
4
17 and 19
4 and 5
The square numbers between 1 and 20 are 1,4,9 and 16.
All whole numbers between 1 and 400 (=20 square).
23, 29
There are an infinite number of rational numbers between any two numbers.
20 is a whole number and so it cannot lie between two consecutive whole numbers.
There are (not counting 1) three square numbers between 1 and 20.
25
There are 31 perfect square numbers between 1 and 1000 (including 1).
4
1, 4, 9, 16
No. Square numbers (or perfect square numbers) are squares of integers. The perfect square numbers are 1, 4, 9, 16, 25, 36 ... 20 is not in the series.