‘liusuyi’
2023-05-25 c6eb731b0a70946e5ba265d9e5d427b8bb4537a6
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'use strict';
 
const BN = require('bn.js');
 
const p = new BN('2e1b162f326430f5ac6af10f96b2a8350e01675d22324c9f', 'hex');
 
console.log(p.bitLength());