askvity

How many odd integers are there between 100 and 1000?

Published in Number Theory 2 mins read

There are 450 odd integers between 100 and 1000.

Understanding Odd Integers

  • Odd integers are whole numbers that cannot be divided evenly by 2.
  • The sequence of odd integers goes like 1, 3, 5, 7, and so on.
  • To find the number of odd integers in a range, we look at the pattern and apply a little math.

Determining the Range

  • The first odd integer after 100 is 101.
  • The last odd integer before 1000 is 999.
  • Therefore, we are counting odd numbers within the inclusive range of 101 to 999.

Calculating the Number of Odd Integers

  • We can use the arithmetic sequence formula or simply derive the number.
  • The sequence of odd numbers forms an arithmetic progression where the common difference (d) is 2.

Based on the provided reference:

"d is the common difference. So, there are 450 odd numbers in between 100 and 1000."
This directly states the answer to our question.

Summary

Concept Value
First odd integer in range 101
Last odd integer in range 999
Number of odd integers 450

Conclusion

By analyzing the sequence of odd integers and referencing the information provided, we can confirm that there are 450 odd integers between 100 and 1000.

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