CAT Question > What will be the last non-zero digit of (25!)...

What will be the last non-zero digit of (25!)^{45!}?

- a)8
- b)4
- c)6
- d)None of these

Correct answer is option 'C'. Can you explain this answer?

►Here there is no need to find the last non zero digit of 25!.

►We know that last non zero digit of 25! will be an even number and (even number)^{4k} = 6, so last non zero digit of expression will be 6.

**Hence the answer is option C**

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Here there is no need to find the last non zero digit of 25!.We know that last non zero digit of 25! will be an even number and (even number)4k= 6, so last non zero digit of expression will be 6.Hence the answer is option C