Let \(A = \left| {\begin{array}{*{20}{c}} p&q\\ r&s \end{array}} \right|\)where p, q, r and s are any four different prime numbers less than 20. What is the maximum value of the determinant?

Let \(A = \left| {\begin{array}{*{20}{c}} p&q\\ r&s \end{array}} \rig

1.	Let \(A = \left\| {\begin{array}{*{20}{c}} p&q\\ r&s \end{array}} \right\|\)where p, q, r and s are any four different prime numbers less than 20. What is the maximum value of the determinant?
A.	215
B.	311
C.	317
D.	323
Answer» D. 323

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Let \(A = \left| {\begin{array}{*{20}{c}} p&q\\ r&s \end{array}} \right|\)where p, q, r and s are any four different prime numbers less than 20. What is the maximum value of the determinant?

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