How to Sum a Given Number into Single Digit Using Nested While Loop in Python?
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Condition for Sum a Given Number into Single Digit Using Nested While Loop in Python
Description:
Summing a given number's digits until the result is a single digit can be done by repeatedly adding
the digits together.
This process is known as digit root or repeated digital sum.
Step-by-Step Process
Start with the given number:
Begin with the number whose digits you need to sum.
Use a while loop to check if the number has more than one digit:
Check if the number has more than one digit by ensuring it's greater than 9.
Sum the digits of the number:
In the while loop, extract each digit of the number and sum them together.
Repeat the process with the resulting sum:
If the result is still more than one digit, repeat the process until a single digit remains.
Return the final single-digit result:
Once the number becomes a single digit, return the final result.
Sample Code
#Sum a given number into single digit
def sum_to_single_digit(n):
while n >= 10:
total_sum = 0
while n > 0:
total_sum += n % 10
n = n // 10
n = total_sum
return n
number = int(input("Enter the number:" ))
result = sum_to_single_digit(number)
print(f"The single-digit sum of {number} is {result}")
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