Yes.
Yes.
1,4,6,8,9,10,12,14,15,16,18,20,21,22,24,25,26,27,28,30,32,33,34,35,36,38,39,40,42,44,45,46,48,49,50,51,52,54,55,56,57,58,60,62,63,64,65,66,68,69,70,72,74,75,76,77,78,80,81,82,84,85,86,876,88,90,91,92,93,94,95,96,98,99,100
They are all the numbers that have only two factors which are themselves and one whereas composite numbers have more than two factors.
Check
10x10=100 numbers
prime numbers.
Yes.
Yes.
show me a multiplication chart
The answer depends on how the numbers are combined: addition, subtraction or multiplication.
1,4,6,8,9,10,12,14,15,16,18,20,21,22,24,25,26,27,28,30,32,33,34,35,36,38,39,40,42,44,45,46,48,49,50,51,52,54,55,56,57,58,60,62,63,64,65,66,68,69,70,72,74,75,76,77,78,80,81,82,84,85,86,876,88,90,91,92,93,94,95,96,98,99,100
That they are not perfect squares.
It is the identity element of multiplication. That puts it in a special category.
Sure, you can make a multiplication chart that is any size you want.
Only in the ones column. Prime numbers aren't multiples of anything but one and themselves.
You can find a great multipication chart on google imiges just type in multiplication chart and it will give you lots of great multiplication chats.