Question

Write a python code which prints first 20 prime numbers using loop

Answer 1

Answer:

It's not copied from the net I have typed it own

Code:

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1. # Python program to display all the prime numbers within an interval
3. # change the values of lower and upper for a different result
4. lower = 0
5. upper = 20
7. # uncomment the following lines to take input from the user
8. #lower = int(input("Enter lower range: "))
9. #upper = int(input("Enter upper range: "))
11. print("all numbers between",lower,"and",upper,"are:")
13. for num in range(lower,upper + 1):
14.   # prime numbers are greater than 1
15.   if num > 1:
16.       for i in range(2,num):
17.           if (num % i) == 0:
18.               break
19.       else:
20.           print(num)

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Output:

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all numbers between 0 and 20 are:

2

3

5

7

11

13

17

19

hope this helps you........................Ω

Answer 2

Answer:

Python code to print the first 20 prime numbers using loops.

Explanation:

Program:-

for Number in range (1, 73):

count = 0

for i in range(2, (Number//2 + 1)):

if(Number % i == 0):

count = count + 1

break

if (count == 0 and Number != 1):

print(" %d" %Number, end = ' ')

Output:

2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71