The prime factorization of 664 is:
$$ 664 = 2\cdot2\cdot2\cdot83 $$Which is the same as :
$$ 664 = 2^{3}\cdot83 $$Prime factorization can be nicely visualized by creating a factorization tree.
| 664 can be written as 2 × 332. |
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| 332 can be written as 2 × 166. |
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| 166 can be written as 2 × 83. |
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| The end nodes are the prime factors of the number 664. |
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