‘liusuyi’
2023-06-24 388aba5a9bf187edada44787a9268401d01b7a59
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'use strict';
 
const BN = require('bn.js');
 
const p = new BN('2e1b162f326430f5ac6af10f96b2a8350e01675d22324c9f', 'hex');
 
console.log(p.bitLength());