6.45
6.47
107
42
If you mean 6 and 3 then they are 5 and 4
7 and 8
7x9=63
There are lots of numbers between 63 and 720. Exactly halfway between them is 391.50, so that may be the answer you are looking for.
It is: 75
107
It is: (63+57)/2 = 60
42
(17 + 63)/2 = 80/2 = 40
Do you mean like what is the number exactly between them. 53+63=116/2=58
42
26.5
It can be, only it is not a perfect square. 72 = 7*7 = 49 and 82 = 8*8 = 64 So 63 lies between the squares of 7 and 8 and so there is no whole number whose square is 63.
There isn't a prime number between 63 and 65
The number is 63.