## Python while loop exercises for CBSE Computer Science

### 1- Python program to print First 10 Even numbers using while loop

num = 2 while(num<=20): print(num) num = num + 2

Output:

2 4 6 8 10 12 14 16 18 20

### 2- Python program to print First 10 Odd numbers using while loop

num = 1 while(num<=20): print(num) num = num + 2

Output:

1 3 5 7 9 11 13 15 17 19

### 3- Python program to print First 10 Natural numbers using while loop

num = 1 while(num<=10): print(num) num = num + 1

Output:

1 2 3 4 5 6 7 8 9 10

### 4- Python program to print First 10 Whole numbers using while loop

num = 0 while(num<10): print(num) num = num + 1

Output:

0 1 2 3 4 5 6 7 8 9

### 5-Python program to print first 5 numbers and their cubes using while loop.

num = 1 print("Numbers\t Cube") while(num<=5): print(num,"\t", num ** 3) num = num + 1

Output:

Numbers Cube 1 1 2 8 3 27 4 64 5 125

### 6- Python program to print a series of (10, 20, 30, 40, 50) using while loop.

num = 10 while (num <= 50) : print(num, end = " , \n") num = num +10

Output:

10 , 20 , 30 , 40 , 50 ,

### 7- Python program to print sum of first 10 Natural numbers using while loop.

num = 10 sum = 0 while num >= 1: sum = sum + num num= num - 1 print(sum)

Output:

55

### 8- Python program to print sum of first 10 even numbers using while loop.

num = 2 sum = 0 while num <= 20: sum = sum + num num= num + 2 print(sum)

Output:

110

### 9- Python program to print table of a given number using while loop.

i = 1 num = int(input("Enter any number : ")) while i <= 10: print(num," * ",i," = ", num * i) i = i+1

Output:

Enter any number : 5 5 * 1 = 5 5 * 2 = 10 5 * 3 = 15 5 * 4 = 20 5 * 5 = 25 5 * 6 = 30 5 * 7 = 35 5 * 8 = 40 5 * 9 = 45 5 * 10 = 50

### 10- Python program to check weather the inputted number is prime or not using while loop.

num1 = int(input("Enter any number : ")) k=0 if num1 == 0 or num1 == 1: print("Not a prime number ") else: i = 2 while(i<num1): if num1 % i == 0: k = k+1 i = i+1 if k == 0 : print( num1,"is prime number") else: print(num1, "is not prime number")

Output:

Enter any number : 6 6 is not prime number >>>