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Find the HCF of 126 and 144 by prime fac...

Find the HCF of 126 and 144 by prime factorization method.

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Verified by Experts

The correct Answer is:
18
HCF of 126 and 144 :
`{:(126=2xx63,144=2xx72),(=2xx3xx21,=2xx2xx36),(=2xx3xx3xx7,=2xx2xx2xx18),(=2^(1)xx3^(2)xx7,=2^(4)xx3^(2)):}`
`:.` HCF (126,144)`=2xx3^(2)`
`=18`
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