Question
Find the prime factorization of number 646.
Answer
The prime factorization of 646 is:
$$ 646 = 2\cdot17\cdot19 $$Explanation
Prime factorization can be nicely visualized by creating a factorization tree.
| 646 can be written as 2 × 323. |
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| 323 can be written as 17 × 19. |
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| The end nodes are the prime factors of the number 646. |
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