1.

18! +19 ! Find the number of zero?

Answer»

Step-by-step EXPLANATION:

Now, the NUMBER of zeros at the END of N =18!+19!=18!+19!

\begin{lgathered}=18!+19(18!)\\\\=18!(1+19)\\\\=20\times18!\\\\=20\cdot18\cdot17\cdot16\cdot15..............2\cdot1\\\\= 12804731372000000\end{lgathered}  \:



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