Divide without a remainder in Python

Divide without a remainder in Python #

Use the floor division operator // to divide without a remainder, e.g. result_1 = 25 // 4. The floor division operator will always return an integer and is like using mathematical division with the floor() function applied to the result.

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result_1 = 25 // 4
print(result_1)  # 👉️ 6

result_2 = 25 / 4
print(result_2)  # 👉️ 6.25

We used the floor division // operator to divide without a remainder.

The result of using the floor division operator is that of a mathematical division with the floor() function applied to the result.

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my_num = 50

print(my_num / 5)  # 👉️ 10.0 (float)
print(my_num // 5)  # 👉️ 10 (int)

You can use the math.floor() method in a similar way to how we used the floor division // operator.

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import math


result_1 = math.floor(25 / 4)
print(result_1)  # 👉️ 6

result_2 = 25 / 4
print(result_2)  # 👉️ 6.25

The math.floor method returns the largest integer less than or equal to the provided number.

There is also a math.ceil() method.

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import math


result_1 = math.ceil(25 / 4)
print(result_1)  # 👉️ 7

result_2 = 25 / 4
print(result_2)  # 👉️ 6.25

The math.ceil method returns the smallest integer greater than or equal to the provided number.

You can also use the round() function if you want to round to the nearest integer when dividing.

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result_1 = round(26 / 4)
print(result_1)  # 👉️ 6

result_2 = 26 / 4
print(result_2)  # 👉️ 6.5

# --------------------------------

print(round(6.5))  # 👉️ 6
print(round(6.51))  # 👉️ 7

The round function takes the following 2 parameters:

The round function returns the number rounded to ndigits precision after the decimal point.

If ndigits is omitted, the function returns the nearest integer.