Number hit intervals is a statistical tool for analyzing 연금복권720+ lottery that identifies patterns in the intervals between each number's appearances in draws.

This method is based on counting the number of draws between repeated occurrences of a specific ball. The interval analysis helps identify numbers that are 'due' to appear in upcoming draws.

Based on the last 20 draws for 연금복권720+ lottery: Field # 1: ball 1 has been absent the longest (depth 13 draws), ball 5 appeared most recently (depth 0). Field # 2: ball 6 has been absent the longest (depth 17 draws), ball 7 appeared most recently (depth 0). Field # 3: ball 4 has been absent the longest (depth 14 draws), ball 6 appeared most recently (depth 0). Field # 4: ball 8 has been absent the longest (depth 19 draws), ball 6 appeared most recently (depth 0). Field # 5: ball 6 has been absent the longest (depth 13 draws), ball 4 appeared most recently (depth 0). Field # 6: ball 5 has been absent the longest (depth 19 draws), ball 8 appeared most recently (depth 0). Field # 7: ball 1 has been absent the longest (depth 16 draws), ball 7 appeared most recently (depth 0). Full interval table is shown below. Draws between hits →Karnauh method →