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Unit 1 and 2

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  • Is the lowest quantity that is a multiple of two or more given quantities.
    Lowest Common Multiple (LCM)
  • These are factors which are prime numbers.
    Prime Factors
  • Is 40 a multiple of 5? Why?
    Yes, because 40 can be divided exactly by 8.
  • It is the method of finding the multiplication of prime factors to get the original number.
    Prime Factorization
  • A result in multiplying one number to another number.
    Multiple
  • What are the 3 methods to find the HCF and LCM?
    Listing Method, Prime Factorization Method, Repeated Short Division
  • How many prime numbers are there from 1 to 100?
    25
  • What is the lowest common multiple (LCM) of 6 and 8?
    24
  • What are the first 5 prime numbers?
    2, 3, 5, 7, 11
  • What are the common factors of 6 and 9?
    1 and 3
  • What are the first 3 common multiples of 6 and 9?
    18, 36, 54
  • It is the highest number that can be divided exactly in each of two or more numbers.
    Highest Common Factor (HCF)
  • What is the highest common factor of 12, 15, and 18?
    3
  • It has more than 2 factors. It can be divided exactly by a whole number besides 1 and itself.
    Composite Number
  • What is the highest common factors of 18 and 30?
    6
  • A shortcut for writing repeated multiplications by the same number.
    Index Notation
  • These are the numbers you multiply together to get a product.
    Factors
  • It is a whole number greater than 1 that has only 2 factors, 1 and itself.
    Prime Number
  • What is the lowest common multiple of 12, 21 and 28?
    84
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