# Multiplying with Prime and Composite Numbers Worksheet

Instructions: Solve the following problems.

- Multiply 2 and 3.
- Multiply 5 and 7.
- Multiply 11 and 13.
- Multiply 17 and 19.
- Multiply 23 and 29.
- Multiply 31 and 37.
- Multiply 41 and 43.
- Multiply 47 and 53.
- Multiply 59 and 61.
- Multiply 67 and 71.

## Prime and Composite Numbers

Instructions: Classify the given numbers as prime or composite.

Number | Prime or Composite? |
---|---|

19 | |

37 | |

57 | |

73 | |

91 | |

101 | |

121 | |

151 | |

169 | |

197 |

## Multiplying with Prime and Composite Numbers

Instructions: Solve the following problems.

Multiplication | Solution |
---|---|

2 x 11 | |

3 x 23 | |

5 x 19 | |

7 x 31 | |

11 x 13 | |

17 x 29 | |

19 x 41 | |

23 x 47 | |

37 x 41 | |

53 x 59 |

## Prime Factorization

Instructions: Find the prime factorization of the given numbers.

Number | Prime Factorization |
---|---|

24 | |

36 | |

48 | |

60 | |

72 | |

84 | |

96 | |

108 | |

120 | |

144 |

## Multiplying with Prime Factorization

Instructions: Solve the following problems using prime factorization.

Multiplication | Prime Factorization Solution |
---|---|

18 x 30 | |

28 x 42 | |

56 x 72 | |

63 x 90 | |

75 x 99 | |

88 x 100 | |

108 x 132 | |

120 x 140 | |

132 x 156 | |

144 x 168 |

## Word Problems

Instructions: Solve the following word problems.

- A farmer has 5 fields with 7 cows in each field. How many cows does he have in total?
- A baker has 6 trays of bread, with 4 loaves of bread on each tray. How many loaves of bread does he have in total?
- A company has 10 employees, and each employee has 8 hours of work per day. How many hours of work are done in total?
- An office has 12 printers, and each printer can print 20 pages per minute. How many pages can all the printers print in 1 hour?
- A class has 15 students, and each student has 5 pencils. How many pencils are there in total?

## Challenge Problems

Instructions: Solve the following challenge problems.

- What is the product of the first 20 prime numbers?
- What is the product of all the prime numbers between 30 and 40?
- What is the product of all the odd composite numbers between 50 and 60?
- What is the product of all the even composite numbers between 70 and 80?
- What is the product of all the prime factors of 120?