The prime factorization of 690 is:
$$ 690 = 2\cdot3\cdot5\cdot23 $$Prime factorization can be nicely visualized by creating a factorization tree.
690 can be written as 10 × 69. |
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10 can be written as 2 × 5. |
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69 can be written as 3 × 23. |
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The end nodes are the prime factors of the number 690. |
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