Evaluate
1860480
Factor
2^{7}\times 3^{2}\times 5\times 17\times 19
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\frac{2432902008176640000}{\left(20-5\right)!}
The factorial of 20 is 2432902008176640000.
\frac{2432902008176640000}{15!}
Subtract 5 from 20 to get 15.
\frac{2432902008176640000}{1307674368000}
The factorial of 15 is 1307674368000.
1860480
Divide 2432902008176640000 by 1307674368000 to get 1860480.
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