"The high number from the Middle East is only coincidence, he said. It is no particular choice on our part, ... We accept visa trainees from those countries. We'd accept them from other countries, too, but we don't get their applications."
"One would be hard put to find a set of whole numbers with a more fascinating history and more elegant properties surrounded by greater depths of mystery--and more totally useless--than the perfect numbers."
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Source: Martin Gardner (2009). “When You Were a Tadpole and I Was a Fish: And Other Speculations About This and That”, p.124, Macmillan
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