Prime Number Series in Python with Algorithm

Python Program to Check Prime Number

Aim: To generate prime number series up to n 

Algorithm to Find Prime Numbers

  1. step: Start
  2. step: Declare a lower variable and read and read the value.
    1. lower = int(input(“enter lower number”)
  3. step: Declare a higher variable and read and read value.
    1. higher = int(input(“enter higher number”)
  4. step: In n for loop take the range of values from lower to higher.
    1. for num in range(lower, higher +1)
  5. step: Check for the condition.
    1. if num > 1
  6. step: If the condition is true go to the I for loop otherwise take the next iteration.
    1. for i in range( 2, num):
  7. step: In I for loop check the condition n % i = 0
    1. if ( num % i) == 0:
  8. step: if the condition is true then break the loop.
  9. step: Else print(num) 
  10. step: end.

Source Code: Prime Number Program in Python Print 1 to 100

lower = int(input("enter lower range:"))
higher = int(input("enter higher range:"))
for num in range(lower,higher + 1):
# prime numbers are greater than 1
if num > 1:
for i in range(2,num):
if (num % i) == 0:
break
else:
print(f'prime_numbers from {lower} to {higher} are:',num)

The output of prime number

C:\Users\Pramod\PycharmProjects\pythonProject\venv\Scripts\python.exe C:/Users/Pramod/PycharmProjects/pythonProject/main.py
enter lower range:0
enter higher range:100
Prime_numbers from 0 to 100 are: 2
Prime_numbers from 0 to 100 are: 3
Prime_numbers from 0 to 100 are: 5
Prime_numbers from 0 to 100 are: 7
Prime_numbers from 0 to 100 are: 11
Prime_numbers from 0 to 100 are: 13
Prime_numbers from 0 to 100 are: 17
Prime_numbers from 0 to 100 are: 19
Prime_numbers from 0 to 100 are: 23
Prime_numbers from 0 to 100 are: 29
Prime_numbers from 0 to 100 are: 31
Prime_numbers from 0 to 100 are: 37
Prime_numbers from 0 to 100 are: 41
Prime_numbers from 0 to 100 are: 43
Prime_numbers from 0 to 100 are: 47
Prime_numbers from 0 to 100 are: 53
Prime_numbers from 0 to 100 are: 59
Prime_numbers from 0 to 100 are: 61
Prime_numbers from 0 to 100 are: 67
Prime_numbers from 0 to 100 are: 71
Prime_numbers from 0 to 100 are: 73
Prime_numbers from 0 to 100 are: 79
Prime_numbers from 0 to 100 are: 83
Prime_numbers from 0 to 100 are: 89
Prime_numbers from 0 to 100 are: 97

Process finished with exit code 0

FQA: To check the prime number

How do you check if a number is prime in Python?

To check that we have to import sympy package and then use sympy.isprime(num) and the output will be True or False.
Example:
import sympy
print(sympy.isprime(5))

How do you generate a random prime number?

To generate a random prime number we have to import sympy package.
Syntax:
sympy.randprime(starting_num, end_num)
Example:
import sympy
print(sympy.randprime(0, 100))

Is there a prime number function in Python?

yes, there is a function for a prime number in python. For that, you have to import a package called sympy.
Example:
import sympy
print(list(sympy.primerange(0, 100)))
Output: [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]

How do you write a prime number program in Python?

There may be a different way but I will explain to you two ways: 1st way is by using a loop statement and passing through a condition that is explained and 2nd way is by using a function. It’s a very simple way just we have to import a package called sympy and then we have to use function i.e. list(sympy.primerange(0, 100))

How many prime numbers are there between 1 and 1000?

There are twenty-five prime numbers from 1 to 100 and those are [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]

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Pramod Kumar Yadav is from Janakpur Dham, Nepal. He was born on December 23, 1994, and has one elder brother and two elder sisters. He completed his education at various schools and colleges in Nepal and completed a degree in Computer Science Engineering from MITS in Andhra Pradesh, India. Pramod has worked as the owner of RC Educational Foundation Pvt Ltd, a teacher, and an Educational Consultant, and is currently working as an Engineer and Digital Marketer.



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