Remainder Operator %

The % operator returns the remainder of a division between two numbers.

For example, 10 % 3 returns 1, which is the remainder when 10 is divided by 3.

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remainder = 10 % 3

print(remainder)  # 1

The remainder operator is often used to determine whether a number is even or odd by checking the remainder when it is divided by 2.

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# Example of determining even or odd
number = 7

# A number is even if it's divisible by 2 with no remainder; otherwise, it's odd

if number % 2 == 0:
    print("It's an even number.")
else:
    print("It's an odd number.")

It can also be used to find the unit digit of a number by calculating the remainder when it is divided by 10.

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# Finding the units digit of a number
number = 123

ones_place = number % 10

print(ones_place)  # 3