#!/usr/bin/env node
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var bn = require('bn.js');
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var fs = require('fs');
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var mr = require('../').create();
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var num = '';
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if (process.argv[2]) {
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num += fs.readFileSync(process.argv[2]);
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start(num);
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} else {
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process.stdin.on('data', function(chunk) {
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num += chunk.toString().replace(/[^0-9a-f]/gi, '');
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});
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process.stdin.once('end', function() {
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start(num);
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});
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}
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function start(text) {
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var num = new bn(text, 16);
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var divisor = mr.getDivisor(num);
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if (!divisor)
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process.exit(1);
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if (divisor.cmpn(1) === 0)
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process.exit(0);
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console.log(divisor.toString(16));
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}
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