Math

A Century of Digit Products

Difficulty
xxxxxx xxx xxxxxxx xxxxx xx x xxxxxxxxxxx xxxxxxx xx xxxxxxxxx xxxxx xxxx xxxxx xxxx x xxx, xxxx xxxxxxxxxxx xxx xxxxxx. xxx xxxxxxx, xxxx \(xx\) xxx \(xxx\) xxxx xxxxxxx xxxxx \(xx\), xxx xxx xxxxxxx xxxxx xx \(x\) xx \(x\). xxx \(x\) xx xxx xxx xx xxx xxxxxxx xxxxxx xx xxx xxxxxxxx xxxx \(x\) xx \(xx^{xxx}-x\), xxxxxxxxx. xxxx xx xxx xxxxx xxxxx xx \(x\)?

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