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Re: To find the units digit of a large number?

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One final question here is another example

If we have the find the units digit of 344^{328}

4^1 is 4
4^2 is 16
4^3 is 4

so the repeating block over here {4,6}

In this case the remainder is 0 so the units digit of this expression is 6?

so if there are 4 repeating blocks and the remainder is 0 we raise it to the 4th power ( some examples would be 3,7 etc) in this current example its the 2nd power?

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