Python script that prints prime numbers less than 20 in Tamil | #Python_Practical_Code #python #cod

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In this video, I’ll show you

Python script that prints prime numbers less than 20

AIM:
This Python script is to find and print all prime numbers less than 20 using the trial division method.

ALGORITHM:

1. Define a function is_prime(number) that takes a positive integer number as input and checks if it is prime.
2. In the is_prime function, first, handle the special cases where the number is less than 2 (not prime) or equal to 2 (prime).
3. For numbers greater than 2, check divisibility by integers from 2 up to the number itself (exclusive).
4. If the number is divisible by any integer in the range, it is not prime, and the function returns False.
5. If the number is not divisible by any integer in the range, it is prime, and the function returns True.
6. In the main part of the script, set the limit to 20 and use a list comprehension to find all prime numbers less than the limit using the is_prime function.
7. Print the list of prime numbers.
Note: The trial division method is a straightforward approach for finding prime numbers, but it becomes inefficient for large numbers.
PRIME NUMBER:
A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. In other words, a prime number is a number that cannot be evenly divided by any other number except 1 and itself.
For example, the first few prime numbers are:
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, ...


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