solution/cw3/factors.while
author Christian Urban <christian.urban@kcl.ac.uk>
Mon, 10 Oct 2022 15:15:15 +0100
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Christian Urban <christian.urban@kcl.ac.uk>
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// Find all factors of a given input number
Christian Urban <christian.urban@kcl.ac.uk>
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// by J.R. Cordy August 2005
Christian Urban <christian.urban@kcl.ac.uk>
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Christian Urban <christian.urban@kcl.ac.uk>
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write "Input n please";
Christian Urban <christian.urban@kcl.ac.uk>
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read n;
Christian Urban <christian.urban@kcl.ac.uk>
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write "The factors of n are:\n";
Christian Urban <christian.urban@kcl.ac.uk>
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f := 2;
Christian Urban <christian.urban@kcl.ac.uk>
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while n != 1 do {
Christian Urban <christian.urban@kcl.ac.uk>
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    while (n / f) * f == n do {
Christian Urban <christian.urban@kcl.ac.uk>
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        write f; write "\n";
Christian Urban <christian.urban@kcl.ac.uk>
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        n := n / f
Christian Urban <christian.urban@kcl.ac.uk>
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    };
Christian Urban <christian.urban@kcl.ac.uk>
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    f := f + 1
Christian Urban <christian.urban@kcl.ac.uk>
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}