Python Exercises: Check if each number is prime in a list of numbers

Python List: Exercise - 17 with Solution

Write a Python program to check if each number is prime in a given list of numbers. Return True if all numbers are prime otherwise False.

Sample Data:
([0, 3, 4, 7, 9]) -> False
([3, 5, 7, 13]) -> True
([1, 5, 3]) -> False

Sample Solution-1:

Python Code:

def test(nums):
    return all(is_prime(i) for i in nums)
def is_prime(n):
    if (n==1):
        return False
    elif (n==2):
        return True;
    else:
        for x in range(2,n):
            if(n % x==0):
                return False
        return True
    
nums = [0, 3, 4, 7, 9]
print("Original list of numbers:")
print(nums)
print("Check if each number is prime in the said list of numbers:")
print(test(nums))
nums = [3, 5, 7, 13]
print("\nOriginal list of numbers:")
print(nums)
print("Check if each number is prime in the said list of numbers:")
print(test(nums))
nums = [1, 5, 3]
print("\nOriginal list of numbers:")
print(nums)
print("Check if each number is prime in the said list of numbers:")
print(test(nums))  

Sample Output:

Original list of numbers:
[0, 3, 4, 7, 9]
Check if each number is prime in the said list of numbers:
False

Original list of numbers:
[3, 5, 7, 13]
Check if each number is prime in the said list of numbers:
True

Original list of numbers:
[1, 5, 3]
Check if each number is prime in the said list of numbers:
False

Flowchart:

Visualize Python code execution:

The following tool visualize what the computer is doing step-by-step as it executes the said program:

Sample Solution-2:

Python Code:

def test(nums):
    result = [is_prime(i) for i in nums]
    return all(result)

def is_prime(n):
    if (n==1):
        return False
    elif (n==2):
        return True;
    else:
        for x in range(2,n):
            if(n % x==0):
                return False
        return True
    
nums = [0, 3, 4, 7, 9]
print("Original list of numbers:")
print(nums)
print("Check if each number is prime in the said list of numbers:")
print(test(nums))
nums = [3, 5, 7, 13]
print("\nOriginal list of numbers:")
print(nums)
print("Check if each number is prime in the said list of numbers:")
print(test(nums))
nums = [1, 5, 3]
print("\nOriginal list of numbers:")
print(nums)
print("Check if each number is prime in the said list of numbers:")
print(test(nums)) 

Sample Output:

Original list of numbers:
[0, 3, 4, 7, 9]
Check if each number is prime in the said list of numbers:
False

Original list of numbers:
[3, 5, 7, 13]
Check if each number is prime in the said list of numbers:
True

Original list of numbers:
[1, 5, 3]
Check if each number is prime in the said list of numbers:
False

Flowchart:

Visualize Python code execution:

The following tool visualize what the computer is doing step-by-step as it executes the said program:

Python Code Editor:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous Python Exercise: Generate and print a list of first and last 5 elements where the values are square of numbers between two numbers.
Next Python Exercise: Generate all permutations of a list in Python.