7 of them.
Ueure
25
50
There are exactly 50 even numbers if you include 100. There are exactly 50 odd numbers if you include 1.
45
No numbers in that range have an odd number of factors.
half of (50 - 20)
50 of them.
50
50
25
50
50
10.
what re the odd or re numbers between 50 and 70
300
There are 25 of them.
101