Question

find the lcm of 35,49 and 91 by prime factorization

Answer 1

$\rm\mathbf{ANSWER}$

$\rm Prime \ factors \ of \ 35 = 5 \ , \ 7\\\\Prime \ fators \ of \ 49 = 7\\\\Prime \ factors \ of \ 91 =13 \ , \ 7$

$\rm LCM = 7\times 5 \times 7 \times 13$

       $\rm = \bf 3185$

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