Brain Teasers
1316
Can you make the number 1316 using only the numbers 4 and 7 twice each? You may only use the sign ( ) in the problem.
Hint
Putting something in parentheses is the same thing as multiplying it. Like 4(3)=12, if you didn't already know that.Answer
4(7)47=13164 x 7 = 28
28 x 47 = 1316
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