Answer to Question #184969 in Python for jayanth

Question

Sum of Prime Numbers In the Input

Given a list of integers, write a program to print the sum of all prime numbers in the list of integers.

Note: One is neither prime nor composite number.Input

The input will be a single line containing space-separated integers..Output

The output should be a single line containing the sum of all prime numbers from 1 to N.Explanation

For example, if the given list of integers are

2 4 5 6 7 3 8

As 2, 3, 5 and 7 are prime numbers, your code should print the sum of these numbers. So the output should be 17.

Sample Input 1

2 4 5 6 7 3 8

Sample Output 1

17

Sample Input 2

65 87 96 31 32 86 57 69 20 42

Sample Output 2

31

Answer 1

def sum_primes(n):
    s1 = 0
    for i in range(0,len(n)):
        num = n[i]
        if num > 1:
            if all(num%j != 0 for j in range(2, int(num**0.5)+1)):
                s1 = s1 + num
        else:
            s1 = 0
    return(s1)

Example

In : n = [65, 87, 96, 31, 32, 86, 57, 69, 20, 42]
In : sum_primes(n)
Out : 31