Lychrel number
An allotrope of carbon, consisting of planes of carbon atoms arranged in hexagonal arrays with the planes stacked loosely, that is used as a dry lubricant, in lead pencils, and as a moderator in ...
lead
(mathematics) A natural number that cannot form a palindrome through the iterative process of repeatedly reversing its digits and adding the resulting numbers.
plural of arrest
plural of Caitlin
研究者たちは、196が繰り返し桁を反転して加算する操作を行っても回文にならない自然数の候補であるかどうか、いまだに議論している。
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DiQt
Free
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