There are seven numbers - 14, 28, 42, 56, 70, 84, 98
Six numbers
8 of them.
There is 67
All of the odd numbers between 11 and 99 inclusive are two digit numbers that are not multiples of 2. There are 45 of them.
There are 457 such numbers.
Four. 24 and its multiples.
There are three numbers between 10 and 50 which are divisible by both 3 and 5. All numbers that are multiples of 3 and 5 are the multiples of the lowest common multiples (lcm) of 3 and 5 which is 15. The multiples of 15 between 10 and 50 are {15, 30 and 45}, thus there are 3 numbers.
All the multiples of 4 are also multiples of 2.
There are 67 multiples of 6 and 50 multiples of 8 in that range. Their total, 117, will include numbers that are both.
33 multiples of 3 10 multiples of 10 -3 multiples of both 40 total
There are 166 multiples of 6 in that range. There are 100 multiples of 10 in that range. There are 33 numbers on both lists. 266 - 33 = 233
There are 30 multiples of 30 between 100 and 999.
Two numbers
Six numbers
There are 16 multiples of 6 in that range.
There are 83 composite numbers.
8 of them.