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e-mihaylin/factorial-length.js

Created October 4, 2018 10:11
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factorial-length.js
const count = n => Math.floor((ln(2 * Math.PI * n) / 2 + n * (ln(n) - 1)) / ln(10)) + 1;
const ln = x => Math.log(x) / Math.log(Math.E);
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