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Useless maths trivia

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Old 24 December 2005, 12:08 PM
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HankScorpio
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Default Useless maths trivia

111111111 squared is 12345678987654321

(not up to much today )
Old 24 December 2005, 12:09 PM
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HankScorpio
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So - impress everyone down the pub...

What's the square root of 12345678987654321?
Old 24 December 2005, 12:23 PM
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fast bloke
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-4?
Old 24 December 2005, 02:46 PM
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farmer1
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111111111
Old 24 December 2005, 04:39 PM
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Distinguished Gentleman
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Amazing farmer1, you worked that out in only 4½ hours!!

DG
Old 24 December 2005, 04:53 PM
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Originally Posted by Distinguished Gentleman
Amazing farmer1, you worked that out in only 4½ hours!!

DG
Way to count, DG.
Old 24 December 2005, 05:19 PM
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Hanslow
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The following is also true....

1² = 1
11² = 121
111² = 12321
1111² = 1234321
11111² = 123454321

and so on (up to 9 1s)
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