Square numbers in that range are 625 and 676.
The number halfway between them is 600.
The two numbers, in their hundreds, on either side of 652 are:600 - which is 652 - 600 = 52 away, and700 - which is 700 - 652 = 48 away.Of these two, the nearer is 700.
600 as it is 49 away from 600 but is 51 away from 700
600
700
400 to 500
The squares of 25, 26, -25 and -26 are in that range.
25 squared = 625 and 26 squared = 676
750
The number halfway between them is 600.
650
700
700
The range is 400. (700 - 300 = 400)
The years between 600 and 700.
700
You can find lists of prime numbers online in many places. Just search Google for "list of prime numbers" or something similar.