No it isn't. 68 can be divided by numbers other than itself and 1.
The factors of 67 are: 1, 67 The factors of 68 are: 1, 2, 4, 17, 34, 68
3
Yes. It can divide into lots of numbers. No whole number can divide into it, as it is a prime number, but it can be divided into 34, 51, 68, 85 and so on. It is a factor of all of those and many other numbers, so it can be divided into many numbers.
In any given set, the mean is the average, which is the total of the numbers divided by how many numbers there are. Ex. (10, 17, 20, 45, 68) 68 + 45 + 20 + 17 + 10 = 160 There are 5 numbers in this set. 160/5 = 32 The mean is 32.
503 divided 68 = 7.397058823529412
68 divided by9 = 7.555555555555555
68 divided by 3 is 22.67
0.1176
0.0029
7
0.68