A congruency!
Posted: Tue Jan 19, 2016 3:15 pm
Let $a, b \in \mathbb{Z}$ and $p$ be a prime number. Prove that:
$$\left(a+b\right)^p = a^p + b^p \pmod p$$
$$\left(a+b\right)^p = a^p + b^p \pmod p$$
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