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37 lines
627 B
C++
37 lines
627 B
C++
//
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// Factors.cpp
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// Clock Signal
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//
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// Created by Thomas Harte on 29/07/2016.
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// Copyright © 2016 Thomas Harte. All rights reserved.
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//
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#include "Factors.hpp"
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unsigned int NumberTheory::greatest_common_divisor(unsigned int a, unsigned int b)
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{
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if(a < b)
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{
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unsigned int swap = b;
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b = a;
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a = swap;
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}
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while(1) {
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if(!a) return b;
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if(!b) return a;
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unsigned int remainder = a%b;
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a = b;
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b = remainder;
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}
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}
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unsigned int NumberTheory::least_common_multiple(unsigned int a, unsigned int b)
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{
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if(a == b) return a;
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unsigned int gcd = greatest_common_divisor(a, b);
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return (a / gcd) * (b / gcd) * gcd;
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}
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