Why is 1%2 = 1?

Question

I just saw that print(1%2) outputs 1 in Python and it is similar in other languages like C or C++. I am studying programming for quite some time and never gave it a thought. Does anyone know why is that?

Answer 1

Because if you don't have enough cookies to give each kid at least one, the quotient is 0 (each kid gets 0 cookies) and the remainder is the same as the number of cookies you have (as the kids don't get any cookies).

4 cookies, 5 children => each child gets 0 cookies and 4 will be left over.

Sorry if the cookie example is a bit infantile, but it's the best way to understand it IMO 😅

Answer 2

An equation with this symbol ( % )the division modulo yields only the remainder portion of the calculation.

Answer 3

Well bro it's that because % this operator is known as modulo and it returns the remainder.
Now 1 divided by 2 gives a remainder of 1 and quotient 0 .
As 2 = 1*0 +1
Hence 1 % 2=1
Thanks

Answer 4

Because the remainder is 1.

Answer 5

Ali Anwar Floating point modulo:

You have 23.7 cookies and 7.3 children. How many cookies does each child get? => 23.7 // 7.3 = 3

How many cookies do you need to give every kid 3 cookies? => 3 cookies * 7.3 kids = 21.9 cookies

How many cookies will be left? => 23.7 - 21.9 = 1.8

==> 23.7 % 7.3 = 1.8

Answer 6

Gonza G. The question is not about SQL

Answer 7

modulo is used to return the remainder if any
while division is used to know how many times a number can go in another number
example
9/3=3
9%3=0
because % returns the remainder

hope it helped

Answer 8

Thanks Prince PS for making it clear. I also noticed that Python allows to use a modulo like this "1.3%2", however "C" doesn't allow it. Floating point modulo doesn't make sense to me.

Answer 9

Hola! Espero poder ayudarte, solo hablo español, el operador "%" sirve para sacar la parte entera de una división o también conocido como módulo de la división. En el caso de usar "%" en SQL sirve para hacer una consulta usando algún comodín. Eso es lo que entendí. Saludos

Answer 10

I ask you a question :
What is the remainder of 1 / 2 in an Euclidean division?

//that will be 1

Answer 11

By the way your equation doesn't make sense Prince PS because 2 != 1*0 + 1

Answer 12

Anna Thanks. But what if "1.2%2" where 1.2 < 2. In this case the output is 1.2, why is that?

Answer 13

The “%” operator gives you the remainder of the division
if the divisor (e.g. 2) is bigger than the dividend (e.g. 1.2) means that the dividend contains 0 (zero) times the divisor and the remainder is equal to the dividend.

Hope this helps

BTW you can see it as 1=2*0+1

Answer 14

D=d*q+r
1=2*0+1
If we divide 1 by 2 it will be divided by 0 and we will get 1 as a remainder
Remember->whenever denominator is greater than numerator in % case.just write the numerator as a answer..

Answer 15

It's simple bro.
As you already know that % operator gives remainder.
Then we can write 1%2 as---
2 ) 1 ( 0
0
-----
1
-----

So by just simple division we got the remainder 1.

Hope you understand it easily by this method.

Answer 16

% represents remainder so if you divide 1 by 2 obviously the remainder will be 1 thats why the ans is 1.

Answer 17

if small number module by large number it's remainder is always smallest number

Answer 18

The remainder of 1/2

Answer 19

Modulo is mathematical thing it’s what we call remainder or the left over of division.

Answer 20

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