Fun with zeroes....

Number Theory Level 2

How to create a number 120 using using only 5 zeroes 0,0,0,0,0 and just one mathematical operator.Name the mathematical operator to be used.

Multiplication Addition Factorial Exponent Division Modulus

Saumya Shandilya by Saumya Shandilya , 25, India

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2 solutions

Saumya Shandilya
Jan 11, 2015

The correct answer is factorial. (0!+0!+0!+0!+0!)! = 120

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Shouldn't it be Addition and Factorial?

Marc Vince Casimiro - 6 years, 5 months ago

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Maybe, but the factorial operator is more important here, since it does the wonders of turning those 0s into 1s.

Sudeshna Pontula - 6 years, 5 months ago

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alternatively it can also be (5.0!)!

Saumya Shandilya - 6 years, 5 months ago

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@Saumya Shandilya – Yes you could simplify it that way but in the problem we don't have any 5s to start with :P.

Sudeshna Pontula - 6 years, 5 months ago
Sudoku Subbu
Jan 25, 2015

that's it if we do any other operations it will become 1. but its not for factorials because 0!=1

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