Composite number is a whole number that can be made by multiplying other whole numbers.

**Example: **

10 can be made by 5 × 2 so is a composite number.

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## Not Composite number

5 = 1 × 5, Is **not **composite number because 1 × 5 isn’t using **other** whole numbers

7 = 2 × 3.5, Is **not **composite number because 3.5 isn’t **whole numbers**.

All whole numbers above 1 are either composite or prime.

## Table of Prime and Composite numbers

Table of Prime numbers and Composite numbers from 2 to 50

Number | Composition | Prime or Composite |

2 | 1 × 2 | Prime |

3 | 1 × 3 | Prime |

4 | 2 × 2 | Composite |

5 | 1 × 5 | Prime |

6 | 2 × 3 | Composite |

7 | 1 × 7 | Prime |

8 | 2 × 4 | Composite |

9 | 3 × 3 | Composite |

10 | 2 × 5 | Composite |

11 | 1 × 11 | Prime |

12 | 2 × 6 | Composite |

13 | 1 × 13 | Prime |

14 | 2 × 7 | Composite |

15 | 3 × 5 | Composite |

16 | 2 × 8 | Composite |

17 | 1 × 17 | Prime |

18 | 2 × 9 | Composite |

19 | 1 × 19 | Prime |

20 | 2 × 10 | Composite |

21 | 3 × 7 | Composite |

22 | 2 × 11 | Composite |

23 | 1 × 23 | Prime |

24 | 2 × 12 | Composite |

25 | 5 × 5 | Composite |

26 | 2 × 13 | Composite |

27 | 3 × 9 | Composite |

28 | 2 × 14 | Composite |

29 | 1 × 29 | Prime |

30 | 2 × 15 | Composite |

31 | 1 × 31 | Prime |

32 | 2 × 16 | Composite |

33 | 3 × 11 | Composite |

34 | 2 × 17 | Composite |

35 | 5 × 7 | Composite |

36 | 2 × 18 | Composite |

37 | 1 × 37 | Prime |

38 | 2 × 19 | Composite |

39 | 3 × 13 | Composite |

40 | 2 × 20 | Composite |

41 | 1 × 41 | Prime |

42 | 2 × 21 | Composite |

43 | 1 × 43 | Prime |

44 | 2 × 22 | Composite |

45 | 3 × 15 | Composite |

46 | 2 × 23 | Composite |

47 | 1 × 47 | Prime |

48 | 2 × 24 | Composite |

49 | 7 × 7 | Composite |

50 | 2 × 25 | Composite |