Table 2 Enriching factor after each round of panning

1.0 × 10¹¹

1.2 × 10⁴

1.2 × 10⁻⁷

9.0 × 10¹⁰

3.2 × 10⁴

3.6 × 10⁻⁷

8.7 × 10¹⁰

2.0 × 10⁵

2.3 × 10⁻⁶

2.7 × 10¹⁰

4.3 × 10⁶

1.6 × 10⁻⁴