Before going to learn the formula for odd numbers, let us recall what are odd numbers. Odd numbers are whole numbers that cannot be exactly divided by 2. For example, numbers 1, 3, 5, 7, 9,.. are odd numbers. The odd numbers formula helps in representing an odd number in general. Let us learn about the formula for odd numbers with a few examples in the end.
What Is the Formula for Odd Numbers?
An odd number can be always expressed as 1 plus or minus an even number. We know that an even number is of the form 2n, where n is a whole number. Thus, the formula for odd numbers can be given as: