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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: 203?
1x2x7x29
1x3x7x29
1x7x29
1x2x2x7x29

Q 2: What are the factors of the number: 283?
1x2x2x283
1x2x283
1x3x283
1x283

Q 3: What are the factors of the number: 318?
1x2x2x3x53
1x2x3x53
1x2x2x2x3x53
1x2x3x3x53

Q 4: What are the factors of the number: 94?
1x2x2x47
1x2x47
1x2x3x47
1x2x2x2x47

Q 5: What are the factors of the number: 391?
1x3x17x23
1x2x17x23
1x17x23
1x2x2x17x23

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Question 10: This question is available to subscribers only!


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