Question: A coastal region experiences flooding every 17 days and erosion every 23 days. What is the least number of days until both events occur on the same day?

Sun, 03 May 2026 17:04:46 +0000

**Why a Coastal Region Experiencing Flooding Every 17 Days and Erosion Every 23 Days Will Coincide—Once Every 391 Days** Every 17 days, floodwaters surge along a vulnerable coastal strip—tallying up迅速（six swift exchanges）each cycle. Every 23 days, the shoreline retreats under relentless wave action, scarred by erosion that reshapes the land. Together, these forces form a predictable rhythm: one flood, one erosive surge—how often do they align? This question isn’t just mathematical; it’s increasingly relevant as climate patterns intensify coastal vulnerability across the U.S.
In recent years, increasing concerns about rising sea levels and extreme weather have amplified public attention on these recurring threats. Real estate buyers, coastal communities, and policy planners now seek clarity on the timing of these events—not just for risk awareness, but for informed decision-making. Understanding when both flooding and erosion peak simultaneously unlocks better planning, safer infrastructure, and deeper insight into regional resilience. --- ### Why This Pattern Is Gaining Attention in the U.S.