The time it would take to find the determinant of a matrix using the cofactor method can be daunting. A student may not realize this as they may be limited to finding determinants of matrices of order 4×4 or less by hand. In this blog, we derive the formula for a typical amount of computational time it would take to find the determinant of a nxn matrix using the cofactor method.
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The Numerical Methods Guy 
Human readable times? 1.32e9 seconds is about 42 years! Also: 1.65e56 seconds = 5.22e45 millenia.
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Good translation!
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HORER
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