The prime factorization of 1287 is:
$$ 1287 = 3\cdot3\cdot11\cdot13 $$Which is the same as :
$$ 1287 = 3^{2}\cdot11\cdot13 $$Prime factorization can be nicely visualized by creating a factorization tree.
| 1287 can be written as 3 × 429. |
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| 429 can be written as 3 × 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 1287. |
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