Question

The three digits in 10! are:

• A. $800$
• B. $700$
• C. $500$
• D. $600$

Answer 1

Answer: (A)

$800$

As we know that $10!=1\times 2\times 3\times 4\times 5\times 6\times 7\times 8\times 9\times 10$

$10!={10}^2(3\times 4\times 6\times 7\times 8\times 9)$

$10!={10}^2(3^4\times 2^6\times 7)$

$10!={10}^2(81\times 64\times 7)$

The last three digit in $10!$ is $800$

The correct option is A.