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# need help

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Given $$a \equiv 1 \pmod{7}, b \equiv 2 \pmod{7}$$ , and $$c \equiv 6 \pmod{7}$$, what is the remainder when $$a^{81} b^{91} c^{27}$$ is divided by 7?

Guest Jul 18, 2017
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a =8, b=9, c=13

{8^81.9^91.13^27} mod 7 = 5 Remainder.

Guest Jul 18, 2017