Visual representation of real numbers, illustrating the hierarchy from irrational to rational numbers, including integers, whole numbers, and natural numbers.
Diagram showing the classification of real numbers, including irrational numbers (e.g., square root of 8, 3.14159...) and rational numbers (integers, whole numbers, counting or natural numbers), with examples like -4.8, -9, 0, 1, 2, 3, 4, 5, 6, and 24.1515151515.