64 and 81
prime numbers between 40 and 50: 41, 43, 47
It is 64.
There are three prime numbers between 50 and 65: 53, 59, and 61
There are four prime numbers between 50 and 100. They are 67, 71, 73, and 79.
Three of them.
80
The square root of 50 is between 7 and 8
50
positive square numbers less than 50 are 7 these are : 1,4,9,16,25,36,49.These are less than 50.
64 and 81
Square numbers of integers falling between 50 and 90 are: 82 = 64 92 = 81
There are 24 perfect squares between 50 and 1000.
50,40,39,28,32,54,76
There is only one and it is 64
76
There are infinitely many numbers between 34 and 50 and so infinitely many sets of 4 numbers.