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How Many Integers Between 1 and 1000 Are Divisible by 5?

Published in Number Theory 1 min read

There are 200 integers between 1 and 1000 that are divisible by 5.

Understanding Divisibility by 5

An integer is divisible by 5 if it ends in either 0 or 5. This means that every fifth integer is divisible by 5. To find the total number of integers divisible by 5 within a given range, a simple calculation suffices.

Calculation

We can determine the number of integers divisible by 5 between 1 and 1000 by dividing 1000 by 5:

1000 / 5 = 200

Therefore, there are 200 integers between 1 and 1000 that are divisible by 5. This is consistent across multiple sources, as shown in the provided references. For example, the reference from Study.com explicitly states: "We get that there are 200 integers between 1 and 1000 that are divisible by 5." The Vaia reference also confirms this by stating "There are 200 integers between 1 and 1000 that are divisible by 5 and 800 integers that are not divisible by 5."

Examples

  • 5, 10, 15, 20, ..., 995, 1000 are all divisible by 5.
  • Every number in this sequence is separated by 5.

This straightforward method accurately identifies all integers divisible by 5 within the specified range.

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