Examine the given Python program and select the purpose of the program from…
2023
Examine the given Python program and select the purpose of the program from the following options: N=int(input("Enter the number")) for i in range(2, N): if (N%i==0): print(i)
- A.
to display the proper factors (excluding 1 and the number N itself)
- B.
to check whether N is a prime or Not
- C.
to calculate sum of factors of N
- D.
to display all prime factor of the number N
Attempted by 2677 students.
Show answer & explanation
Correct answer: A
Correct purpose: to display the proper factors of N (all divisors excluding 1 and N).
Explanation of the code:
Input: N = int(input("Enter the number")) reads an integer N.
Loop: for i in range(2, N): iterates i from 2 up to N-1 (inclusive).
Check and print: if N % i == 0: print(i) prints each i that divides N evenly. These are the proper factors of N (excluding 1 and N).
Examples and edge cases:
If N = 12 the output is: 2 3 4 6 (each printed on its own line).
If N is prime (for example N = 7) the program prints nothing, because there are no divisors between 2 and N-1.
If N <= 2 the loop does not run and nothing is printed.
If you want different behavior:
To check whether N is prime: use a flag (e.g., is_prime = True). If a divisor is found set is_prime = False and break. After the loop, report the result based on the flag.
To compute the sum of proper factors: initialize total = 0, inside the if add total += i, and after the loop print(total).
To print only prime factors: either test each divisor i for primality before printing, or perform a proper prime factorization algorithm that repeatedly divides N by prime factors.