# Mod

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## What is the Mod Function?

The Mod function is a mathematical function that is used to find the remainder of a division operation. It’s a very useful function when you need to perform calculations based on remainders, such as determining whether a number is even or odd, or performing calculations that involve cycles.

## How Does the Mod Function Work?

The Mod function takes two arguments: the first is the number to be divided, and the second is the divisor. The function returns the remainder of the division. For example, if you want to find the remainder of dividing 9 by 4, you would use the Mod function like this:

Mod(9, 4)

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```The function would return a value of 1, since 9 divided by 4 leaves a remainder of 1.

## Using the Mod Function in Power Apps

Now that you know what the Mod function is and how it works, let's take a look at how you can use it in Power Apps. Here are a few examples:

### 1. Determining Whether a Number is Even or Odd

One common use case for the Mod function is determining whether a number is even or odd. To do this, you simply use the Mod function to find the remainder of dividing the number by 2. If the remainder is 0, the number is even. If the remainder is 1, the number is odd. Here's an example:

If(Mod(7, 2) = 0, “Even”, “Odd”)

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```In this case, the Mod function is used to find the remainder of dividing 7 by 2. Since the remainder is 1, the formula would return the value "Odd".

### 2. Performing Calculations with Cycles

Another use case for the Mod function is performing calculations that involve cycles. For example, let's say you're creating a Power App that tracks the number of days since an event occurred, and you want to display the number of days as a cycle that resets every 7 days. You can use the Mod function to accomplish this. Here's an example:

Mod(DaysSinceEvent, 7)

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```In this case, the DaysSinceEvent variable represents the number of days since the event occurred. The Mod function is used to find the remainder of dividing this number by 7. The result will be a value between 0 and 6, which represents the number of days in the current cycle.

### 3. Formatting Numbers with Commas

Finally, you can also use the Mod function to format numbers with commas. This is useful when you're displaying large numbers, such as currency amounts. Here's an example:

Text(Value, “#,###”)

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```In this case, the Value variable represents the number you want to format. The Text function is used to convert the number to text, and the "#,###" format string is used to add commas to the number.

The Mod function is a powerful tool for performing mathematical calculations in Power Apps. Whether you're determining whether a number is even or odd, performing calculations with cycles, or formatting numbers with commas, the Mod function can help you get the job done quickly and easily. By using the examples and techniques provided in this article, you'll be able to take full advantage of this powerful function in your Power Apps.

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