Question
Find the prime factorization of number 151981.
Answer
The prime factorization of 151981 is:
$$ 151981 = 19\cdot19\cdot421 $$Which is the same as :
$$ 151981 = 19^{2}\cdot421 $$Explanation
Prime factorization can be nicely visualized by creating a factorization tree.
| 151981 can be written as 19 × 7999. |
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| 7999 can be written as 19 × 421. |
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| The end nodes are the prime factors of the number 151981. |
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