Find the missing number.

To find the missing number, we need to analyze the pattern of the numbers arranged in the segments of the circle.

Step-by-Step Analysis
Examine the progression: Start with the smallest number and look at how the subsequent numbers are derived.

3

3 = 3 * 1

6 = 3 * 2

18 = 6 * 3

72 = 18 * 4

360 = 72 * 5

15120 = 360 * ?

Identify the pattern: Each number is the result of multiplying the previous number by an increasing integer, starting from 1.

3 * 1 = 3

3 * 2 = 6

6 * 3 = 18

18 * 4 = 72

72 * 5 = 360

360 * 6 = 2160

2160 * 7 = 15120

Determine the missing number: Following this pattern, the missing number is 360 * 6 = 2160.