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Difference between revisions of "2024 SSMO Speed Round Problems/Problem 1"

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<math>2024^2-1 = (2024-1)(2024+1) = 2023 \cdot 2025 = 7 \cdot 17^2 \cdot 3^4 \cdot 5^2</math>. The sum of the distinct prime factors are <math>3+5+7+17 = \boxed{32}</math>.
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-Vivdax

Latest revision as of 19:32, 2 May 2025

Problem

Find the sum of the distinct prime factors of $2024^2 - 1$.

Solution

$2024^2-1 = (2024-1)(2024+1) = 2023 \cdot 2025 = 7 \cdot 17^2 \cdot 3^4 \cdot 5^2$. The sum of the distinct prime factors are $3+5+7+17 = \boxed{32}$.

-Vivdax

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