Answer
True.
Work Step by Step
Natural numbers include all whole numbers greater than and not including zero. Natural numbers are always positive, and can be represented by the set {1,2,3...}. Integers contain all numbers, positive, negative or zero, that have no decimal part. Integers can be represented by the set {...-3, -2, -1, 0, 1, 2, 3...} Therefore, since natural numbers also have no decimal part, they fit within the definition of integers. All natural numbers are integers.
