# Check whether sum of digits at odd places of a number is divisible by K in Python

PythonServer Side ProgrammingProgramming

Suppose we have a number n and another number k, we have to check whether the sum of digits of n at it's odd places (from right side to left side) is divisible by k or not.

So, if the input is like n = 2416 k = 5, then the output will be True as sum of odd placed numbers from right to left is 4 + 6 = 10. Which is divisible by 5.

To solve this, we will follow these steps −

• total := 0, pos := 1
• while n > 0 , do
• if pos is odd, then
• total := total + (n mod 10)
• n := quotient of (n / 10)
• pos := pos + 1
• if total is divisible by k, then
• return True
• return False

Let us see the following implementation to get better understanding −

## Example Code

Live Demo

def solve(n, k):
total = 0
pos = 1
while n > 0:
if pos % 2 == 1:
total += n % 10
n = n // 10
pos += 1

if total % k == 0:
return True
return False

n = 2416
k = 5
print(solve(n, k))

## Input

2416, 5


## Output

True
Published on 16-Jan-2021 09:18:35