Python program to print prime numbers upto n
Prime number is define as whole number greater than 1 that cannot be exactly divided by any whole number other than itself and 1 (e.g. 2, 3, 5, 7, 11):
Here we need to create variable and put the value in loop .
The for loop ranges from 2 to the half of the number so 1 and the number itself are not counted as divisors.
then we can check the two condition are follow :

The value of a%i is equal to zero that means it is divisible by it and it is not a prime number .

The next condition that is else which is checking k is variable counts the number of divisors and if the count is lesser or equal to 0, the number is a prime number.
Below is example of prime number using python program
primeVariable=int(input("Enter upper value to print prime numbers n : "))
for a in range(2,primeVariable +1):
k=0
for i in range(2,a//2+1):
if(a%i==0):
k=k+1
if(k<=0):
print(a)
This is out put of python program if you gien n number is equal to 30 .
Enter upper limit: 30
2
3
5
7
11
13
17
19
23
29
What are the prime number from 1 to 100?
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97.
what is the range of prime numbers?
To find whether a larger number is prime or not, sum all the digits in a number, if the sum is divisible by 3 so it is not a prime number. There is except 2 and 3 in our input, all the other prime numbers can be present in the general form as 6n + 1 or 6n  1, where n is the natural number.
Conclusion :
Prime numbers are a fundamental concept in mathematics and have important applications in various fields, including cryptography and computer science. Here are some key conclusions and facts about prime numbers.

Mersenne primes are prime numbers that can be expressed as 2^n  1, where n is also a prime.

Twin prime pairs are prime numbers that have a difference of 2, like (3, 5), (11, 13), and (17, 19).

Prime numbers play a crucial role in modern cryptography, particularly in algorithms like RSA.

Prime numbers can sometimes be observed in natural phenomena, such as patterns in sunflowers and the distribution of atoms in crystals.
To print prime numbers up to a given integer n in Python, you can use a loop to check each number in the range for primality. Here's a simple Python program to achieve this