Detection of a Leap Year

How to check a leap year!
To check if a year is a leap year or not without a calendar, you can use the following steps:

1. Divide the year by 4. If the year is evenly divisible by 4, it could be a leap year.

2. If the year is divisible by 100, it is not a leap year. However, if it is also divisible by 400, it is a
leap year.

3. If the year is not divisible by 4, it is not a leap year.

For example, let's check if the year 2020 is a leap year:

1. 2020 ÷ 4 = 505. Since there is no remainder, it could be a leap year.

2. 2020 is also divisible by 100, but it is also divisible by 400. Therefore, 2020 is a leap year.

Let's check another example, the year 2019:

1. 2019 ÷ 4 = 504.75. There is a remainder, so it is not a leap year.

2. 2019 is not divisible by 100, so it is not a leap year
Therefore, 2019 is not a leap year.
Conclusion:
You can use these steps to check any year to see if it is a leap year or not.