# Prime Comic Numbers

Computer Science Level 4

$\Large ...13121110987654321 \text{ is prime?}$

Let us define a comic number as one that is created by concatenating all of the integers from $$1$$ to $$n$$, left to right, in descending order. For example, if we let $$n=12$$, then our comic number would be $$121110987654321$$. What is the first value of $$n$$ such that its corresponding comic number is prime?

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