The prime factorization of 2002 is:
$$ 2002 = 2\cdot7\cdot11\cdot13 $$Prime factorization can be nicely visualized by creating a factorization tree.
| 2002 can be written as 2 × 1001. |
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| 1001 can be written as 7 × 143. |
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| 143 can be written as 11 × 13. |
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| The end nodes are the prime factors of the number 2002. |
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