What is the smallest positive integer that is divisible by every whole number from 1 through 5 inclusive?
60
The least common multiple of 1, 2, 3, 4, and 5 is 60. (Since 4 is already included in 2, LCM(1, 2, 3, 4, 5) = LCM(3, 4, 5) = 3 * 4 * 5 = 60).
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: Hard. More like this: Math riddles with answers or try Target 24 for a different kind of puzzle.
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