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Grade 6 - Mathematics
1.21 Prime Factorization of Numbers up to 1000
Method
:
Factorize the given number
The factors chosen need to be a prime number
Example
: Find the prime factors of 504.
Solution:
Factorize the number 504
Correct
Incorrect
Incorrect
504 = 2 x 252
252 = 2 x 126
126 = 2 x 63
63 = 3 x 21
21 = 3 x 7
504 = 2 x 2 x 2 x 3 x 3 x 7
504 = 2 x 252
252 = 4 x 63
63 = 3 x 21
21 = 3 x 7
504 = 2 x 4 x 3 x 3 x 7
504 = 2 x 252
252 = 2 x 126
126 = 2 x 63
63 = 9 x 7
504 = 2 x 2 x 2 x 9 x 7
2, 3 and 7 are prime numbers
4 is not a prime number
9 is not a prime number
Answer: 2 x 2 x 2 x 3 x 3 x 7
Directions:
Find the prime factors of the following. Also write at least ten examples of your own.
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Question 2: This question is available to subscribers only!
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