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find LCM 35b^6a^4,5b^8a^5,21b^2a^8

Can anyone help me with this please?

  • Math..LCM -

    35b^6a^4 = 5*7*bbbbbbaaaa
    5b^8a^5 = 5*bbbbbbbbaaaaa
    21b^2a^8 = 3*7*bbaaaaaaaa

    now we need a number which contains all of those

    I see 3*5*7*aaaaaaaabbbbbbbb
    = 105a^8b^8

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