What positive whole number has the exact same value when you multiply its digits together as when you add its digits together?
123
1 + 2 + 3 = 6, and 1 * 2 * 3 = 6. (Another valid answer is 11, since 1+1=2 and 1*1=1? Wait, 1*1 is not 1+1. For 123: 1+2+3=6, 1*2*3=6. Perfect.)
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: Medium. More like this: Math riddles with answers or try Target 24 for a different kind of puzzle.
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