6 of them.
Nine of them are evenly divisible by 5, if you include 20 and 60.
10 60 and 100 are not included in the range, so 9
60, 63, 66
There are 9 numbers evenly divisible by 10 : 10, 20, 30, 40, 50, 60, 70, 80, and 90
The odd numbers between 60 and 68 are 61, 63, 65, and 67. These numbers are not divisible by 2 and fall within the specified range.
15 if you include 60, 14 if you don't.
Nine of them are evenly divisible by 5, if you include 20 and 60.
11 if you include 60 and 100, 9 if you don't.
The numbers which are divisible by 9 between 1 - 60 are 9, 18, 27, 36, 45, 54.
10 60 and 100 are not included in the range, so 9
60, 63, 66
There are 9 numbers evenly divisible by 10 : 10, 20, 30, 40, 50, 60, 70, 80, and 90
The numbers between 40 and 60 that are divisible by 9 are 45 and 54. 45/9=5 and 54/9=6. The sum of 45 and 54 is 99.
The odd numbers between 60 and 68 are 61, 63, 65, and 67. These numbers are not divisible by 2 and fall within the specified range.
that would be 11,22,33,44 and 55 so 5 numbers
60 of them because 11*7 = 77 and 71*7 = 497
The prime numbers between 60 and 80 are 61, 67, 71, 73, 79. These numbers are only divisible by 1 and themselves, making them prime.