Positive integers
a perfect square
positive integers
They are called a rational number.
They are called rational numbers
positive integers
They were called integers.
Positive integers
Whole numbers are called integers. There are positive integers, for example, 3, and its opposite, a negative integer, -3.
Integers
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They are called integers. Fractions and decimals are NOT integers, even if it has a positive or negative sign.
Integers.
positive
Such a number is called a "perfect square".
a perfect square
positive integers