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Prime Factoring, GCF, LCM

  1.  
    What are the first 5 prime numbers?
  2.  
    Find the Prime Factors of 45, show your work.
  3.  
    What is a LCM or Lowest Common Multiple?
    A. The biggest multiple 2 or more numbers have in common B. Lowest multiple 2 or more number have in common C. The numbers you multiply together to get a number
  4.  
    Find the GCF of 24 & 32, show your work
  5.  
    What is a GCF or Greatest Common Factor?
    A. The biggest or greatest common factor between 2 or more numbers B. The biggest multiple of 2 or more numbers C. The product of two numbers.
  6.  
    What is the LCM or Least Common Multiple of 8 & 20? Show your work
  7.  
    Find the Prime factors of 36, show your work.
Answer Key
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Prime Factoring, GCF, LCM (Answer Key)

  1.  
    What are the first 5 prime numbers?
    2,3,5,7,11
  2.  
    Find the Prime Factors of 45, show your work.
    3*3*5
  3.  
    What is a LCM or Lowest Common Multiple?
    A. The biggest multiple 2 or more numbers have in common B. Lowest multiple 2 or more number have in common C. The numbers you multiply together to get a number
  4.  
    Find the GCF of 24 & 32, show your work
    GCF = 8
  5.  
    What is a GCF or Greatest Common Factor?
    A. The biggest or greatest common factor between 2 or more numbers B. The biggest multiple of 2 or more numbers C. The product of two numbers.
  6.  
    What is the LCM or Least Common Multiple of 8 & 20? Show your work
    40
  7.  
    Find the Prime factors of 36, show your work.
    2*2*3*3

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