Evaluate
21
Factor
3\times 7
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\frac{5040}{5!\times 2!}
The factorial of 7 is 5040.
\frac{5040}{120\times 2!}
The factorial of 5 is 120.
\frac{5040}{120\times 2}
The factorial of 2 is 2.
\frac{5040}{240}
Multiply 120 and 2 to get 240.
21
Divide 5040 by 240 to get 21.
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