Python Program:

Example:

num=int(input("Enter your last number : "))
print("Your even numbers are :",end=" ")

for i in range(1,num) :
  if i%2==0 :
    print(i, end=" ")

Output:

  Enter your last number : 7
  Your even numbers are : 2 4 6

You should know first :

Even numbers: Numbers perfectly divisible by 2

number % 2 == 0

So, we are using a for loop till the last number entered and check every value for even

for i in range(1,num) :
  # Check every 'i' for even, if even then print