Eleven is the 5th smallest prime number. the next is thirteen.
11 goes into 99 exactly 9 times, so fractions with 11 in the denominator have two digit repeating sequences in their decimal expansions.
There are eleven players in a soccer team.
An eleven-sided polygon is an undecagon.
... Ramsay, Soddy verified that the decay of radium produced helium.
From 1904 to 1914, he was a lecturer at the University of Glasgow and while there he showed that ...
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