Question
Find the prime factorization of number 665.
Answer
The prime factorization of 665 is:
$$ 665 = 5\cdot7\cdot19 $$Explanation
Prime factorization can be nicely visualized by creating a factorization tree.
| 665 can be written as 5 × 133. |
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| 133 can be written as 7 × 19. |
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| The end nodes are the prime factors of the number 665. |
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