Revision history of "2021 GMC 10B Problems/Problem 19"

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  • (cur | prev) 11:19, 6 March 2022Pineconee (talk | contribs). . (231 bytes) (+231). . (Created page with "==Problem== Find the remainder when <math>3^{18}-1</math> is divided by <math>811</math>. <math>\textbf{(A)} ~111 \qquad\textbf{(B)} ~142 \qquad\textbf{(C)} ~157 \qquad\text...")