# (Python Example for Citizen Data Scientist & Business Analyst)

Write a Python program that accept a positive number and subtract from this number the sum of its digits and so on. Continues this operation until the number is positive.

Sample Solution:

Python Code:

``````def repeat_times(n):
s = 0
n_str = str(n)
while (n > 0):
n -= sum([int(i) for i in list(n_str)])
n_str = list(str(n))
s += 1
return s
print(repeat_times(9))
print(repeat_times(21))
``````

Sample Output:

```1
3```

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