Question

Which numbers below are integers but not natural numbers?

1, - 5.41,3root12, 0, -3, -9/7,23

Answer 1

0 and -3

Explanation:

Natural numbers are all whole numbers from 1 to infinity. i.e

1, 2, 3, 4 . . .

These numbers do not include 0.

Integers are all whole numbers (positive and negative) including 0. i.e

. . ., -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, . . .

These numbers are all natural numbers including their negative counterparts (i.e negatives of the natural numbers) and also 0.

So from the options in the question:

1 is a natural number as well as an integer

-5.41 is not a natural number neither is it an integer.

3 root 12 (written as
`3√(12)`) is neither a natural nor an integer number.

0 is an integer but not a natural number

-3 is an integer but not a natural number

-9/7 is neither a natural nor an integer number.

23 is a natural number as well as an integer

Therefore, 0 and -3 are integers but not natural numbers