There are ten: 101, 111, 121, 131, 141, 151, 161, 171, 181, 191.
10 - 101,111,121, ...
10
There are ten such numbers.
201
101, 131, 151, 181, 191 Five of them.
101, 111, 121, 131, 141, 151, 161, 171, 181 and 191.
101, 111, 121, 131, 141, 151, 161, 171, 181, 191
There are 21 prime numbers between 100-200.
44 of them. 8 in the range 2-9 9 in the range 10-99 10 each in 100-199 and 200-299 and 7 in the range 300-364
300
99 of them. Each and every one of the numbers between 100 and 200 is a multiple of itself and 1.
Six.