Friday, November 11, 2016

elementary number theory - 77775555 divided by 191. Find the remainder.

I've seen tons of examples of Fermat's little theorem and solved some it for smaller numbers, but I fail with this.


By Fermat's little theorem 77771901(mod191)


Then 77775555=7777(19029)77774512977774(mod191)


But after that I'm stuck.

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