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

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fozzzy wrote:
So if we are given a question what is the units digit of 777^{777}

we find the pattern for 7 (7,9,3,1)

then we divide \frac{777}{4} and the remainder is 1 so the units digit is 7^1 which is 7?

Is this correct?



Absolutely Correct.

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