The prime factorization of 2013 is:
$$ 2013 = 3\cdot11\cdot61 $$Prime factorization can be nicely visualized by creating a factorization tree.
| 2013 can be written as 3 × 671. |
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| 671 can be written as 11 × 61. |
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| The end nodes are the prime factors of the number 2013. |
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