Code:
num = 3
while num <= 21:
print(num)
num+=3
Output of code:
3
6
9
12
15
18
21
Explanation:
The condition num <= 21 will ensure that the program will only print multiples of 3 up to 21. We set num as 3 since we want to start printing from 3, and we add 3 each time to get the multiples.
Hope this helps :)
