The prime factorization of 1638 is:
$$ 1638 = 2\cdot3\cdot3\cdot7\cdot13 $$Which is the same as :
$$ 1638 = 2\cdot3^{2}\cdot7\cdot13 $$Prime factorization can be nicely visualized by creating a factorization tree.
1638 can be written as 2 × 819. |
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819 can be written as 3 × 273. |
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273 can be written as 3 × 91. |
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91 can be written as 7 × 13. |
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The end nodes are the prime factors of the number 1638. |
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