What happens when you divide 1 by 998001?

Amazing things. That's what happens. But this video from our friends at Numberphile tries to explain WHY it does it... quite interesting, don't you think?



I still remember in primary school, entering 99.999.999 into the calculator (the maximum it allowed) and performing square root as many times as it could (until it became 1). I recall pressing it 23 times. What a difference, no?

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