**Labeling of groups:**

First Group (1): Unit

Second Group (2,5 etc.): Prime numbers

Third Group (50,30 etc.): Composite numbers

**Prime Numbers:**

Cannot be divided by any other number other than 1 and itself (2 factors only)

**Composite Numbers:**

Can be divided by other numbers other than 1 and itself (more than 2 factors)

**Adding of 2 new numbers:**

**Second group: 23 and 31**

Third group: 22 and 32

By Yan Pei Ling from Group 1! :D

Wheeeee~! xD

Score: 10 points

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