Multiply the first four prime numbers together, then add the square of the second prime. What final value do you produce?
219
The first four prime numbers are 2, 3, 5, and 7. Their product is 2 * 3 * 5 * 7 = 210. The second prime is 3, whose square is 9. Adding them gives 210 + 9 = 219.
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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