Problem
2024 Mock AMC 12 - Problem 18
Find the sum of the digits of the largest prime factor p of 7^8 + 7^7 + 7^4 + 7 + 1, given that p > 2500.
\textbf{(A) }5\qquad\textbf{(B) }7\qquad\textbf{(C) }8\qquad\textbf{(D) }10\qquad\textbf{(E) }11
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