# Check whether the sum of absolute difference of adjacent digits is Prime or not in Python

PythonServer Side ProgrammingProgramming

Suppose we have a number n. We have to check whether the sum of the absolute difference of adjacent digit pairs is prime or not.

So, if the input is like n = 574, then the output will be True as |5-7| + |7-4| = 5, this is prime.

To solve this, we will follow these steps −

• num_str := n as string
• total := 0
• for i in range 1 to size of num_str - 1, do
• total := total + |digit at place num_str[i - 1] - digit at place num_str[i]|
• if total is prime, then
• return True
• return False

Let us see the following implementation to get better understanding −

## Example Code

Live Demo

def isPrime(num):
if num > 1:
for i in range(2, num):
if num % i == 0:
return False
return True
return False

def solve(n):
num_str = str(n)
total = 0
for i in range(1, len(num_str)):
total += abs(int(num_str[i - 1]) - int(num_str[i]))

if isPrime(total):
return True
return False

n = 574
print(solve(n))

## Input

574


## Output

True