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MEAP Preparation - Grade 5 Mathematics
1.24 Prime Factorization of Numbers up to 500

Method:
  1. Factorize the given number.
  2. The factors chosen need to be a prime number.
Example: Find the prime factors of 144.
  1. Factorise 144.
  2. 144 = 12 x 12
  3. 12 can be written as 4 x 3.
  4. 4 can be written as 2x2.
  5. Hence 144 is 2x2x3x2x2x3.
Answer: 2x2x3x2x2x3


Directions: Find the prime factors of the following. Also write at least ten examples of your own.
Q 1: What are the factors of the number: 187?
1x2x2x11x17
1x2x11x17
1x3x11x17
1x11x17

Q 2: What are the factors of the number: 86?
1x2x3x43
1x2x2x43
1x2x43
1x2x2x2x43

Q 3: What are the factors of the number: 306?
1x2x2x2x3x3x17
1x2x3x3x3x17
1x2x2x3x3x17
1x2x3x3x17

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