Multiples And Factors

Write all the Prime numbers between 1 and 15.

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Answer explanation

Write all the composite numbers between 41 and 50.

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Find the first 3 multiples common multiples of 6, 12 and 20. What is their LCM?

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Write all the factors of the following and state whether they are Prime or Composite: a. 41 b. 39

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List all the factors and state are the following Co prime? Give reasons for your answers 63 and 36 15, 18 and 20

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Make 2 factor trees for 75.

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Prime factorize and find the HCF of 72 and 48.

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Write True or False: a. All the odd numbers are the prime numbers. b. A number is the greatest factor of itself. c. 1 is a factor of every number. d. The multiples of a number are limited.

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