least whole number
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-1
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0
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1
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none of the above
Reveal answer
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B
Correct answer
Explanation
0 is the least whole number in the standard number system. Whole numbers start from 0 and include all positive integers. -1 is an integer but not a whole number.
AI explanation
Whole numbers are defined as the set {0, 1, 2, 3, ...} — natural numbers plus zero, excluding negatives and fractions. Since negative numbers like −1 are not whole numbers, 0 is the smallest member of the set.