1 and 31
Try if you can find an integer which, when squared, gives you 31. If you can find it, 31 is a perfect square; otherwise, it isn't. Alternately, use your calculator to calculate the square root of 31. If you get an integer, it is a perfect square; otherwise, it isn't.
31 is prime. 32 and 33 are composite.
15 and 16.
31 is a prime number. It has no positive integer factors apart from itself and 1.
31 is an integer.
1 and 31
Only integer factors of 31 are 1 and 31
Try if you can find an integer which, when squared, gives you 31. If you can find it, 31 is a perfect square; otherwise, it isn't. Alternately, use your calculator to calculate the square root of 31. If you get an integer, it is a perfect square; otherwise, it isn't.
31 is prime. 32 and 33 are composite.
31
15 and 16.
26*31
None. 1000 does not have an integer square root. 312 = 961 and 322 = 1024 and there is no integer between 31 and 32 so there can be no integer whose square is 1000.
31 is a prime number. It has no positive integer factors apart from itself and 1.
31+32+33 = 96
-31 - 54 positive or negative