Evaluate
190
Factor
2\times 5\times 19
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\frac{2432902008176640000}{2!\times 18!}
The factorial of 20 is 2432902008176640000.
\frac{2432902008176640000}{2\times 18!}
The factorial of 2 is 2.
\frac{2432902008176640000}{2\times 6402373705728000}
The factorial of 18 is 6402373705728000.
\frac{2432902008176640000}{12804747411456000}
Multiply 2 and 6402373705728000 to get 12804747411456000.
190
Divide 2432902008176640000 by 12804747411456000 to get 190.
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