Let's start writing a Python program using the above algorithm in a simple way. Python program to find the sum of all prime numbers # input the value of NN=int(input("Input the value of N: "))s=0# variable s will be used to find the sum of all prime.Primes=[Trueforkinrange(N...
# Python program to check prime number # Function to check prime number def isPrime(n): return all([(n % j) for j in range(2, int(n/2)+1)]) and n>1 # Main code num = 59 if isPrime(num): print(num, "is a prime number") else: print(num, "is not a prime number") ...
In this program, we have checked if num is prime or not. Numbers less than or equal to 1 are not prime numbers. Hence, we only proceed if the num is greater than 1. We check if num is exactly divisible by any number from 2 to num - 1. If we find a factor in that range, th...
prime number python代码 primes在python 1.题目 2.代码 import os import sys # 请在此输入您的代码 def countPrimes(n): primes=[1]*n count=0 li=[] for i in range(2,n): if primes[i]: count+=1 li.append(i) for j in range(i*i,n,i): primes[j]=0 return count,li n=int(input...
result=is_prime(17)print(result)# 输出True 1. 2. 运行上述代码,可以得到输出结果为True,说明17是一个素数。 性能优化 虽然上述代码能够正确判断一个数是否为素数,但在实际使用中,可以对其进行性能优化。由于素数只能被1和本身整除,因此在试除法中,只需要判断2到n的平方根范围内的数即可。
Program to add two numbers in Python a = input('Enter first number: ') b = input('Enter second number: ') sum = float(a) + float(b) print('The sum of {0} and {1} is {2}'.format(num1, num2, sum)) Program to Check Armstrong Number in Python An Armstrong number is a ...
Next Prime Number - Have the program find prime numbers until the user chooses to stop asking for the next one. Find Cost of Tile to Cover W x H Floor - Calculate the total cost of tile it would take to cover a floor plan of width and height, using a cost entered by the user. ...
for prime in primes: print(prime) # Example usage N = 50 print_primes(N) In this example, we useprimerangefrom thesympylibrary to generate a list of prime numbers up to N and then print them. ReadWrite a Program to Find a Perfect Number in Python ...
flag1=prime(k)#调用prime函数ifflag1:#如果k为素数 flag2=prime(j)#调用prime函数ifflag2:#如果k和j都是素数print(i,'=',k,'+',j)#输出结果 n+=k=k+ 结果如下。 在这里插入图片描述 三、参考 1、廖雪峰的官网 2、python官网 ...
73. Write a program to find the greatest of the two numbers. Python Copy Code Run Code 1 2 3 4 5 6 7 num1 = 100 num2 = 200 if num1 > num2: print(f"{num1} is greater than {num2}") else: print(f"{num2} is greater than {num1}") 74. Write a Python program to ...