Alternatively, note that \( 45 \equiv 0 \mod 9 \), so \( 45^2 \equiv 0 \mod 9 \). - AMAZONAWS

📅 March 6, 2026 👤 scraface

Mar 06, 2026

$Alternatively, note that \( 45 \equiv 0 \mod 9 \), so \( 45^2 \equiv 0 \mod 9 \).$