‘liusuyi’
2023-07-03 c8be57b6de00472cc5f6c4f9a8b15c9af7740fe8
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'use strict';
 
const BN = require('bn.js');
 
const p = new BN('2e1b162f326430f5ac6af10f96b2a8350e01675d22324c9f', 'hex');
 
console.log(p.bitLength());