The prime factorization of 20 is:
$$ 20 = 2\cdot2\cdot5 $$Which is the same as :
$$ 20 = 2^{2}\cdot5 $$Prime factorization can be nicely visualized by creating a factorization tree.
20 can be written as 10 × 2. |
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10 can be written as 2 × 5. |
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The end nodes are the prime factors of the number 20. |
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