#### Answer

$-1$

#### Work Step by Step

Integers are:
$..., -3, -2, -1, 0, 1, 2, 3...$
Natural numbers are:
$1, 2, 3, ....$
Thus, an example of an integer that is not a natural number is $-1$.

Published by
Pearson

ISBN 10:
0-13417-805-X

ISBN 13:
978-0-13417-805-9

$-1$

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