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What is the LCM of 70 and 81?

Updated: 8/19/2019
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Wiki User

12y ago

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Method of prime factorization is one of the best methods to find L.C.M.

Prime factorization of 81 = 3x3x3x3

Prime factorization of 70 = 2x5x7

It is clear that nothing is common in Prime Factorization of both numbers.

Also, L.C.M. = Product of common numbers x Product of uncommon factors

So, L.C.M. of 81 and 70 = Product of 81 and 70(Because nothing is common in 71 and 80) = 81 x 70 = 5670

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12y ago
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12y ago

The Least Common Multiple of 70, 81 is 5,670.

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Q: What is the LCM of 70 and 81?
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