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Divisibility Rule of 5

A number is said to be divisible by another number if the remainder comes out to be zero(0). Divisibility rules are often used to determine, if a number is divisible by another number or not. In this article, we are going to discuss the divisibility rule of 5.

Divisibility Rules

Divisibility rules are a set of general rules, often used to determine whether a number is evenly divisible by another number or not.

Although there are divisibility tests for numbers in any base, they are all different.

Here, presents rules and examples only for a decimal or base 10 numbers. 

Martin Gardner explained and popularized rules in his “Mathematical Games, September 1962” column of Scientific American.

Martin Gardner - Explained Divisibility Rule
Martin Gardner (Source)

He was best known for creating sustaining interest in recreational mathematics principally through his “Mathematical Games” columns, throughout the latter half of the 20th century.

This column lasted for 25 years and was avidly read by the generation who grew up in the years 1956 to 1981.

Divisibility Rule of 5 With Examples

The divisibility rule of 5 is rather one of the simplest of all.

If the last digit of a number is a 0 or 5, then the number is perfectly divisible by 5.

Examples:

  1. Check if 430 is divisible by 5? (\(\bf{430 \div 5}\))
    Here, since the number ends in a 0
    It will be perfectly divisible by 5
    \(430 \div 5 = 86\)
  2. Check if 56 is divisible by 5? (\(\bf{56 \div 5}\))
    Here as we see the number ends with 6 and not 0 or 5
    It will not be perfectly divisible by 5
    \(56 \div 5 = 11.2 \)

FAQs

What is the divisibility rule of 5?

If a number ends with 0 or 5, then it is divisible by 5 of base 10.

Can we divide 44 by 5?

44 is not perfectly divisible by 5, but we can divide by going into decimal space.

What are divisibility rules?

Divisibility rules are a set of general rules, often used to determine whether a number is evenly divisible by another number or not.

Are divisibility rules different for different numbers?

Each number has a specific rule, which also differs on the base.

Know More Divisibility Rules:

Divisibility Rule of 7Divisibility Rule of 9
Divisibility Rule of 6

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