Python Practice › Loop Programs › Program 20
First and last digits
Write a Python program to find the first and last digits of a number.
Input
74351
Output
First digit: 7 Last digit: 1
Approach
- The last digit is
n % 10; remove digits until one is left for the first digit.
Solution
n = 74351last = n % 10first = nwhile first >= 10: first //= 10print("First digit:", first)print("Last digit:", last)Output
First digit: 7 Last digit: 1
Line by line
Lines 4-5
Keep dropping the last digit until a single digit remains.
Learn the concept
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