Number Trivia

Can you find out which number multiplied by itself will give the output as 12345678987654321?




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We have arranged an array of numbers below. What you have to do is use any kind of mathematical symbol you know excluding any symbol that contains a number like cube root. You can use any amount of symbols but you have to come up with a valid equation for all of them.

0 0 0 = 6
1 1 1 = 6
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3 3 3 = 6
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5 5 5 = 6
6 6 6 = 6
7 7 7 = 6
8 8 8 = 6
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