Find the remainder when $1 + 2 + 2^2 + 2^3 + \dots + 2^{100}$ is divided by 7.
Question:
Find the remainder when $1 + 2 + 2^2 + 2^3 + \dots + 2^{100}$ is divided by 7.
Answer:
Let's think step by step.

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Find the remainder when $1 + 2 + 2^2 + 2^3 + \dots + 2^{100}$ is divided by 7.
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