Prime Number Sieve Patterns 2: Visualizing Large-Number Sieve Process

This GeoGebra example demonstrates the Sieve of Eratosthenes for large numbers, visualizing how prime numbers are distributed among natural numbers through an interactive grid. The core mathematical concepts include prime numbers, divisibility, the sieve algorithm, and prime distribution patterns. Construction highlights: the use of RemoveUndefined to clean undefined cells, Textfield for dynamic input of the upper bound, If conditions to mark composite numbers, and a multi-row/column object layout (e.g., A1 to G7) to display the sieve steps. Suitable for high school to early university students learning number theory, this example helps explore prime density, understand algorithmic thinking, and can serve as a visual aid for math experiments or introductory programming lessons.