Question: Evaluate 25178 (mod 7). (Hint: start by reducing, then think about which powers are equivalent to which numbers, mod 7. Try a simple example on

 Evaluate 25178 (mod 7). (Hint: start by reducing, then think about

which powers are equivalent to which numbers, mod 7. Try a simple

Evaluate 25178 (mod 7). (Hint: start by reducing, then think about which powers are equivalent to which numbers, mod 7. Try a simple example on your own first, if you need to further understand this problem.)

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