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Multiple, factor 2 (grade 7- Maths- week 3)

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  • LCM of 28 and 126
    252
  • Find the LCM for 16 and 4
    16
  • What's the next prime number after 29?
    31
  • LCM of 18 and 45
    90
  • A number that is greater than 1 and has only two factors, 1 and the number itself
    prime number
  • finding the list of the number's prime numbers that divide it.
    The prime factorisation of a number
  • What are the first 5 multiples of 6?
    6,12,18,24,30
  • Can you list the multiples of 5?
    5,10,15,20,25,30,35,....
  • Find the HCF of 24 and 30
    6
  • HCF of 18 and 45
    9
  • the NUMBERS YOU MULTIPLY to get another number.
    Factors
  • A SMALLEST MULTIPLE that is SHARED.
    A Lowest common multiple (LCM)
  • Find the LCM for 6 and 10
    30
  • a multiple that TWO or MORE NUMBER SHARES.
    COMMON MULTIPLES
  • list the first 10 prime numbers
    2, 3, 5, 7, 11, 13, 17, 19, 23, and 29
  • find the factors of 15.
    1,3,5,15
  • What are the first 5 multiples of 112 ?
    112,224,336,448,560
  • Prime Factorisation of 90?
    90 = 2 x 3 x 3 x 5
  • Can you list the factors of 50?
    1,2,5,10,25,50
  • LCM of 15 and 21
    105
  • Find the common multiples of 3 and 4.
    12,24,36,....
  • find the HCF of 12 and 24
    12
  • HCF of 28 and 126
    14
  • a VISUAL WAY to REPRESENT INFORMATION, and can be used in many different subjects.
    A Venn Diagram
  • What are the factors of 10?
    1,2,5,10
  • Find the LCM and HCF of 24 and 60.
    12
  • Find the HCF for 24 and 3
    3
  • Prime Factorisation of 60?
    60 = 2 x 2 x 3 x 5
  • HCF of 15 and 21
    3
  • the LARGEST FACTOR that is SHARED
    A Highest common factor (HCF)
  • the prime factorisation of 24 is?
    2 x 2 x 2 x 3 = 24
  • What are the factors of 121 ?
    1,11,21
  • Find the HCF of 30 and 45
    15
  • Let's find the LCM of 3 and 4
    12
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