Infinitely many. There are a 100 perfect squares.
683 perfect squares.
There are 8 perfect squares TTThe
26 of them, starting with 29² up to 54².
sqrt(2000) = 44.7sqrt(20000) = 141.4So the perfect squares between 2000 and 20000 are the squares of 45 to 141 (inclusive)ie there are 97 perfect squares in the interval.
Infinitely many. There are a 100 perfect squares.
Perfect squares have an odd number of factors. There are 31 perfect squares less than 1000.
1
There is no pair of perfect squares that sums to 21. And the question is pointless if it is not about perfect squares because in that case there are infinitely many answers.There is no pair of perfect squares that sums to 21. And the question is pointless if it is not about perfect squares because in that case there are infinitely many answers.There is no pair of perfect squares that sums to 21. And the question is pointless if it is not about perfect squares because in that case there are infinitely many answers.There is no pair of perfect squares that sums to 21. And the question is pointless if it is not about perfect squares because in that case there are infinitely many answers.
683 perfect squares.
10 perfect squares
There are 8 perfect squares TTThe
There are no four-digit perfect squares that are palindromes.
The nearest number whose square ≤ 10000 is 100. Then the greatest odd number less that 100 is 99 so there are 50 odd numbers in the range 1- 99 inclusive whose squares are less than 10000.
Two. 36, and 49 are perfect squares.
26 of them, starting with 29² up to 54².
There are three perfect squares between 0 and 50 that are even.