Practice

How many ways can you place 20 pupils in a row when starting on practice?

Result

n =  2.43290200818E+18

Solution:

n=20!=2.43290200818⋅10{18}=2.43290200818⋅1018n=20!=2.43290200818\cdot 10^\{ 18 \}=2.43290200818\cdot 10^{ 18 }

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