What positive whole number has the same result when you add it to itself as when you multiply it by itself?
2
2 + 2 = 4, and 2 * 2 = 4. No other positive whole number shares this property.
About this riddle
Math riddles hide a calculation inside a short story. Pull out the numbers, work out what is being asked, and watch for a trick such as a unit change.
Difficulty: Easy. More like this: Math riddles with answers or try Target 24 for a different kind of puzzle.
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