Home  >  Article  >  Backend Development  >  How to find prime numbers using python

How to find prime numbers using python

silencement
silencementOriginal
2019-06-10 14:17:0557000browse

How to find prime numbers using python

How to use python to find prime numbers within 100?

Prime numbers are also called prime numbers, and there are infinite numbers. A prime number is defined as a number that has no other factors except 1 and itself among natural numbers greater than 1, such as: 2, 3, 5, 7, 11, 13, 17, 19.

Method 1, use for loop to implement

num=[];
i=2
for i in range(2,100):
   j=2
   for j in range(2,i):
      if(i%j==0):
         break
   else:
      num.append(i)
print(num)

Method 2, use function to implement

import math
def func_get_prime(n):
  return filter(lambda x: not [x%i for i in range(2, int(math.sqrt(x))+1) if x%i ==0], range(2,n+1))
 
print func_get_prime(100)

The output result is:

[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]

The above is the detailed content of How to find prime numbers using python. For more information, please follow other related articles on the PHP Chinese website!

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn