Question

what is whole number​

Answer 1

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Any of the numbers {0, 1, 2, 3, ...} etc.

There is no fractional or decimal part. And no negatives.

$\pink{Example:}$ 5, 49 and 980 are all whole numbers.

Answer 2

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Whole number;

Whole numbers are a set of numbers including the set of natural numbers (1 to infinity) and the integer '0'. A whole number is called whole because it is not a mixed fraction or any rational number, but can be represented as a 'complete number'(excluding the negative integers).

$\mathrm\red{Hope\:it\:helps\:you.}$