Yes, every natural number is a whole number, but the reverse is not always true depending on the definitions used.
Explanation
- Natural numbers typically refer to the set of positive integers starting from 1, i.e.,
{1,2,3,4,…}\{1,2,3,4,\ldots\}{1,2,3,4,…}
Some definitions include 0 as a natural number, but the most common definition starts at 1.
- Whole numbers usually refer to the set of non-negative integers, i.e.,
{0,1,2,3,4,…}\{0,1,2,3,4,\ldots\}{0,1,2,3,4,…}
Relationship
- Since every natural number (1, 2, 3, ...) is included in the whole numbers set (0, 1, 2, 3, ...), every natural number is indeed a whole number.
- However, whole numbers include 0, which is not always considered a natural number.
Summary
Set| Elements| Includes 0?| Includes natural numbers?
---|---|---|---
Natural Numbers| 1, 2, 3, 4, ...| Usually no| Yes
Whole Numbers| 0, 1, 2, 3, 4, ...| Yes| Yes
If you want, I can also provide examples or explain related concepts!