Prime numbers

• Factor

  Factors are all of the numbers that multiply together to make a number
• Factors of 10

  • 1
  • 2
  • 5
  • 10
• Multiple

  Multiples are all the numbers in that number's times tables
• First five multiples of 6

  • 6
  • 12
  • 18
  • 24
  • 30
• Prime number

  A number with exactly two factors, 1 and itself
• Prime numbers between 1 and 10

  • 2
  • 3
  • 5
  • 7
• 720 is not a prime number
• What are to multiples of 8

  1 2 4 8