Euler's Totient Function

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If you know m=pq and Φ=(p-1)(q-1), then define S=m-Φ+1=p+q.

So you have the product m and the sum S.
That means p and q are the solutions of the quadratic x² - Sx + m = 0.

I like Serena Recognitions: Homework Help	If you know m=pq and Φ=(p-1)(q-1), then define S=m-Φ+1=p+q. So you have the product m and the sum S. That means p and q are the solutions of the quadratic x² - Sx + m = 0.