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## Main Question or Discussion Point

I found the following problem online, and can't seem to start it.

How many zeroes are at the end of [tex]4^{5^6}+6^{5^4}[/tex]?

I know how to find zeros at the end of a factorial, but I can't do it with powers.

Any suggestions?

Thanks.

How many zeroes are at the end of [tex]4^{5^6}+6^{5^4}[/tex]?

I know how to find zeros at the end of a factorial, but I can't do it with powers.

Any suggestions?

Thanks.