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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: 289?
1x3x17x17
1x17x17
1x2x2x17x17
1x2x17x17

Q 2: What are the factors of the number: 167?
1x2x167
1x167
1x2x2x167
1x3x167

Q 3: What are the factors of the number: 452?
1x2x2x3x113
1x2x2x2x113
1x2x2x113
1x2x2x2x2x113

Q 4: What are the factors of the number: 358?
1x2x3x179
1x2x179
1x2x2x179
1x2x2x2x179

Q 5: What are the factors of the number: 342?
1x2x2x2x3x3x19
1x2x3x3x19
1x2x2x3x3x19
1x2x3x3x3x19

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