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OF AN17 kt,''4,X!';,'B)~{';~>~ ',z'e21u ,',v2"'~~k F',"@,5U,~,~k?d ~_eV'~?g',',t', Eg~iKnowing p q pq p q and p q pq p q is enough to find p p p and q q q the polynomial x 2 − (n − ϕ (n) 1) x n x^2 \big(n\phi(n)1\big) x n x 2 − (n − ϕ (n) 1) x n factors as (x − p) (x − q), (xp)(xq), (x − p) (x − q), so the two roots p, q p,q p, q