The prime factorization of 78 is:
$$ 78 = 2\cdot3\cdot13 $$Prime factorization can be nicely visualized by creating a factorization tree.
| 78 can be written as 2 × 39. |
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| 39 can be written as 3 × 13. |
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| The end nodes are the prime factors of the number 78. |
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