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Hey everyone, welcome back to simplified
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by Singum. Welcome to our Python series.
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In the last exercise, we checked if a
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number is positive, negative or zero. So
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now in this exercise, we are going to
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write a small but very useful program
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that is to check whether a number is
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even or odd. Trust me, this is one of
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the most common beginner friendly coding
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problems and even once you learn it, you
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will see it pop up everywhere. So let's
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So before coding let's quickly look at
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the flowchart. Always remember a
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flowchart is like your Google maps for
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coding. It shows you the path clearly.
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So here if you observe the flowchart
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we'll start the program and then we'll
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get the number and if the number mod 2
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equal to 0 then we consider it as true
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and if it is not zero then we consider
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it as false. So if it is true we'll
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print the number is even else the number
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is odd and then we will end the program.
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Simple, right? Let's code this now. So,
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all you have to do is always
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enter an integer. So, as we need
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I'm going to keep it int.
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checking the condition.
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So let's slow down and explain every
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part. First we take input from the user
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and convert it into integer using int.
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And then comes the magic which is the
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modulus operator. So num mod 2 gives the
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remainder when we divide the number by
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two. And if the remainder is zero, it
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means the number is perfectly divisible
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by two. So it is even otherwise it's
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odd. So how do you calculate whether a
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number is even or not? Obviously in
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mathematics if we consider a number is
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true when it is divisible by zero. So
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how do you check whether a number is
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divisible by 0 when you get the
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remainder zero then you say that the
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number is divisible by 0. So how do you
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check that? By using this modulus
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operator. Always remember this is
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different. This will give you the
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dividend of the calculation and this
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will give you the remainder of the
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So if the remainder is zero then you
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will say that the number is even. If the
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remainder is not zero then obviously you
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will say that the number is odd. And
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that's it. Just a few lines of code to
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solve a real world problem. Now let's
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test it out with some examples.
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So enter an integer. Let's give it six.
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You say the number is even. Okay. And
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what if the integer is 9?
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You say the number is odd. It works
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perfectly. And yeah, that's how you
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check if a number is even or odd in
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Python. And the best part, the same
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logic is used in many real world
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situations like for example deciding
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turns in a game or scheduling tasks on
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even days or simply checking whether a
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seat number is odd or even. So my little
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challenge for you is try this program
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with different numbers and see the
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results. And if this video made things
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super clear for you, then do me a favor,
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hit that subscribe button. So you can
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continue this Python journey with me and
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also smash the like button if you
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learned something new today. Remember,
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every simple program you write is a step
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toward mastering coding. Keep
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practicing. Stay curious.
