What is the term for a number that is not divisible by 2?

What is the term for a number that is not divisible by 2?

• A. Even number
• B. Odd number
• C. Whole number
• D. Prime number

Answer: (B)

The term for a number that is not divisible by 2 is "odd number." Odd numbers are integers that cannot be evenly divided by 2, which means when you divide them by 2, there is always a remainder of 1. This means they take the form of whole numbers like 1, 3, 5, 7, and so on. In contrast, even numbers, which are divisible by 2, include integers such as 2, 4, 6, and so forth. Whole numbers encompass all non-negative integers, including both even and odd numbers, without any fractions or decimals. Prime numbers are defined as numbers greater than 1 that have no positive divisors other than 1 and themselves; this group includes some odd numbers, but not all odd numbers are prime. Understanding these definitions and classifications helps solidify the concept of odd numbers in mathematics.

The term for a number that is not divisible by 2 is "odd number." Odd numbers are integers that cannot be evenly divided by 2, which means when you divide them by 2, there is always a remainder of 1. This means they take the form of whole numbers like 1, 3, 5, 7, and so on.

In contrast, even numbers, which are divisible by 2, include integers such as 2, 4, 6, and so forth. Whole numbers encompass all non-negative integers, including both even and odd numbers, without any fractions or decimals. Prime numbers are defined as numbers greater than 1 that have no positive divisors other than 1 and themselves; this group includes some odd numbers, but not all odd numbers are prime.

Understanding these definitions and classifications helps solidify the concept of odd numbers in mathematics.